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Saturated fats, unsaturated fats, and trans fats | Biology | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/ap-biology/che

Saturated fats, unsaturated fats, and trans fats

Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy's Biology channel: https://www.youtube.com/channe....l/UC82qE46vcTn7lP4tK
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Statistics intro: Mean, median, and mode | Data and statistics | 6th grade | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/cc-sixth-grade-ma

This is a fantastic intro to the basics of statistics. Our focus here is to help you understand the core concepts of arithmetic mean, median, and mode.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/mean-and-median/e/calculating-the-mean?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade

Watch the next lesson: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/mean-and-median/v/mean-median-and-mode?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade

Missed the previous lesson? https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/histograms/v/interpreting-histograms?utm_source=YT&utm_medium=Desc&utm_campaign=6thgrade

Grade 6th on Khan Academy: By the 6th grade, you're becoming a sophisticated mathemagician. You'll be able to add, subtract, multiply, and divide any non-negative numbers (including decimals and fractions) that any grumpy ogre throws at you. Mind-blowing ideas like exponents (you saw these briefly in the 5th grade), ratios, percents, negative numbers, and variable expressions will start being in your comfort zone. Most importantly, the algebraic side of mathematics is a whole new kind of fun! And if that is not enough, we are going to continue with our understanding of ideas like the coordinate plane (from 5th grade) and area while beginning to derive meaning from data! (Content was selected for this grade level based on a typical curriculum in the United States.)

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan AcademyÂ Ã Âªs 6th grade channel:
https://www.youtube.com/channe....l/UCnif494Ay2S-PuYlD
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Bonds vs. stocks | Stocks and bonds | Finance & Capital Markets | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ec....onomics-finance-doma

The difference between a bond and a stock. Created by Sal Khan.

Watch the next lesson:
https://www.khanacademy.org/economics-finance-domain/core-finance/stock-and-bonds/shorting-stock/v/basic-shorting?utm_source=YT&utm_medium=Desc&utm_campaign=financeandcapitalmarkets

Missed the previous lesson? Watch here: https://www.khanacademy.org/economics-finance-domain/core-finance/stock-and-bonds/stocks-intro-tutorial/v/what-it-means-to-buy-a-company-s-stock?utm_source=YT&utm_medium=Desc&utm_campaign=financeandcapitalmarkets

Finance and capital markets on Khan Academy: Many people own stocks, but, unfortunately, most of them don't really understand what they own. This tutorial will keep you from being one of those people (not keep you from owning stock, but keep you from being ignorant about your investments).

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Finance and Capital Markets channel: https://www.youtube.com/channe....l/UCQ1Rt02HirUvBK2D2
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Recognizing shapes | Geometry | Early Math | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/cc-2nd-grade-math

Learn how to identify circles, triangles, squares, rectangles, rhombuses, and trapezoids.
Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-shapes/e/naming-shapes?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath

Watch the next lesson: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-properties-shapes/v/sides-corners?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath

Missed the previous lesson?
https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-shapes/v/sides-corners?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath

Early Math on Khan Academy: Math begins with counting. It's the most important skill we learn in our early years and becomes the foundation for all other math concepts. Once we can count, we can add, subtract, and measure the world around us. Shortly thereafter, we can learn about place values, plots, graphs, time, money, and shapes. These early math skills are presented in this subject's tutorials in a straightforward, understandable, and (dare we say it) fun way!

Want a virtual coach for Early Math? Unlock the Early Math mission on Khan Academy here: https://www.khanacademy.org?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy’s Early Math channel:
https://www.youtube.com/channe....l/UCs8a-pNM8EHKKU28X
Subscribe to KhanAcademy: http://www.youtube.com/subscri....ption_center?add_use

What is pneumonia? | Respiratory system diseases | NCLEX-RN | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Pneumonia is a medical condition where lung tissue becomes inflamed, usually caused by a virus or bacteria. Learn how shortness of breath, cough, and fever are common symptoms of this condition and why they occur in pneumonia. Created by Jannah George.

Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system-diseases/rn-pneumonia/v/pneumonia-diagnosis-and-treatment?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system-diseases/rn-lung-cancer/v/lung-cancer-treatment?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/lic....enses/by-nc-sa/3.0/u

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channe....l/UCDx5cTeADCvKWgF9x
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

The Pythagorean theorem intro | Right triangles and trigonometry | Geometry | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/cc-eighth-grade-m

Introduction to the Pythagorean Theorem

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/geometry/right_triangles_topic/pyth_theor/e/pythagorean_theorem_1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Watch the next lesson: https://www.khanacademy.org/math/geometry/right_triangles_topic/pyth_theor/v/pythagorean-theorem-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Missed the previous lesson?
https://www.khanacademy.org/math/geometry/right_triangles_topic/pyth_theor/v/pythagorean-theorem?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Geometry channel:
https://www.youtube.com/channe....l/UCD3OtKxPRUFw8kzYl
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Probability explained | Independent and dependent events | Probability and Statistics | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/cc-seventh-grade-

We give you an introduction to probability through the example of flipping a quarter and rolling a die.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/probability/independent-dependent-probability/basic_probability/e/dice_probability?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Watch the next lesson: https://www.khanacademy.org/math/probability/independent-dependent-probability/basic_probability/v/probability-space-exercise-example?utm_source=YT&utm_medium=Desc&utm_campaign=ProbabilityandStatistics

Probability and statistics on Khan Academy: We dare you to go through a day in which you never consider or use probability. Did you check the weather forecast? Busted! Did you decide to go through the drive through lane vs walk in? Busted again! We are constantly creating hypotheses, making predictions, testing, and analyzing. Our lives are full of probabilities! Statistics is related to probability because much of the data we use when determining probable outcomes comes from our understanding of statistics. In these tutorials, we will cover a range of topics, some which include: independent events, dependent probability, combinatorics, hypothesis testing, descriptive statistics, random variables, probability distributions, regression, and inferential statistics. So buckle up and hop on for a wild ride. We bet you're going to be challenged AND love it!

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy’s Probability and Statistics channel:
https://www.youtube.com/channe....l/UCRXuOXLW3LcQLWvxb
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Flow through the heart | Circulatory system physiology | NCLEX-RN | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Learn how blood flows through the heart, and understand the difference between systemic and pulmonary blood flow. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.

Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/nclex-rn-circulatory-system/rn-circulatory-system/v/two-circulations-in-the-body?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/nclex-rn-circulatory-system/rn-circulatory-system/v/meet-the-heart?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/lic....enses/by-nc-sa/3.0/u

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channe....l/UCDx5cTeADCvKWgF9x
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

What is heart failure? | Circulatory System and Disease | NCLEX-RN | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Visit us (http://www.khanacademy.org/sci....ence/healthcare-and- for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Tanner Marshall.

Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-cardiovascular-diseases/heart-failure-r/v/systolic-heart-failure-pathophysiology?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-cardiovascular-diseases/rn-stroke/v/preventing-further-strokes?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/lic....enses/by-nc-sa/3.0/u

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channe....l/UCDx5cTeADCvKWgF9x
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Human ear - structure & working | Sound | Physics | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Let's explore how human ears work.
More free lessons & practice on this chapter-https://www.khanacademy.org/sc....ience/in-in-class9th

Khan Academy is a nonprofit organisation with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organisation, we would love your help!

Created by Mahesh Shenoy

Kidney function and anatomy | Renal system physiology | NCLEX-RN | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Created by Raja Narayan.

Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-renal-system/rn-the-renal-system/v/glomerular-filtration-in-the-nephron?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-renal-system/rn-the-renal-system/v/meet-the-kidneys?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/lic....enses/by-nc-sa/3.0/u

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channe....l/UCDx5cTeADCvKWgF9x
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Basic trigonometry | Basic trigonometry | Trigonometry | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/geometry-home/rig

Introduction to trigonometry

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/e/trigonometry_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Watch the next lesson: https://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/v/example-using-soh-cah-toa?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Trigonometry on Khan Academy: Big, fancy word, right? Don't be fooled. Looking at the prefix, tri-, you could probably assume that trigonometry ("trig" as it's sometimes called) has something to do with triangles. You would be right! Trig is the study of the properties of triangles. Why is it important? It's used in measuring precise distances, particularly in industries like satellite systems and sciences like astronomy. It's not only space, however. Trig is present in architecture and music, too. Now you may wonder...how is knowing the measurement and properties of triangles relevant to music?? THAT is a great question. Maybe you'll learn the answer from us in these tutorials!

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Trigonometry channel:
https://www.youtube.com/channe....l/UCYQSs1lFJZKpyqNQQ
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Relationship between bond prices and interest rates | Finance & Capital Markets | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ec....onomics-finance-doma

Why bond prices move inversely to changes in interest rate. Created by Sal Khan.

Watch the next lesson:
https://www.khanacademy.org/economics-finance-domain/core-finance/stock-and-bonds/bonds-tutorial/v/treasury-bond-prices-and-yields?utm_source=YT&utm_medium=Desc&utm_campaign=financeandcapitalmarkets

Missed the previous lesson? Watch here: https://www.khanacademy.org/economics-finance-domain/core-finance/stock-and-bonds/bonds-tutorial/v/introduction-to-the-yield-curve?utm_source=YT&utm_medium=Desc&utm_campaign=financeandcapitalmarkets

Finance and capital markets on Khan Academy: Both corporations and governments can borrow money by selling bonds. This tutorial explains how this works and how bond prices relate to interest rates. In general, understanding this not only helps you with your own investing, but gives you a lens on the entire global economy.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Finance and Capital Markets channel: https://www.youtube.com/channe....l/UCQ1Rt02HirUvBK2D2
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

The kidney and nephron | Renal system physiology | NCLEX-RN | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/biology/human-

Overview of how the nephrons in the kidney filter blood and reabsorb water and other molecules. Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-renal-system/rn-the-renal-system/v/secondary-active-transport-in-the-nephron?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-renal-system/rn-the-renal-system/v/urination?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn

NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/lic....enses/by-nc-sa/3.0/u

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channe....l/UCDx5cTeADCvKWgF9x
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Modal verbs | The parts of speech | Grammar | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/hu....manities/grammar/par

There's a class of helper verbs known as modals that we use to express a bunch of conditions: we can use them to give advice, make guesses at how necessary or likely something is, make requests of people, and so on. They're super useful.

Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/modal-verbs?utm_source=YT&utm_medium=Desc&utm_campaign=grammar

Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/v/what-is-a-pronoun-the-parts-of-speech-grammar?utm_source=YT&utm_medium=Desc&utm_campaign=grammar

Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/modal-verbs?utm_source=YT&utm_medium=Desc&utm_campaign=grammar

Grammar on Khan Academy: Grammar is the collection of rules and conventions that make languages go. This section is about Standard American English, but there's something here for everyone.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Grammar channel: https://www.youtube.com/channe....l/UC8JT97hQjMVWeO0B-
Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy"

Elements and atoms | Atoms, compounds, and ions | Chemistry | Khan Academy

Fri, 14 Apr 2023 19:44:33 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/ap-biology/che

How elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom.

Watch the next lesson: https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/introduction-to-the-atom/v/atomic-number-mass-number-and-isotopes?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry

Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channe....l/UCyEot66LrwWFEMONv
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Basic multiplication | Multiplication and division | Arithmetic | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/arithmetic-home/m

Introduction to multiplication

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/multiplication-division/multiplication_fun/e/multiplication_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic

Watch the next lesson: https://www.khanacademy.org/math/arithmetic/multiplication-division/multiplication_fun/v/multiplication-2-the-multiplication-tables?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic

Missed the previous lesson?
https://www.khanacademy.org/math/arithmetic/multiplication-division/multiplication_fun/v/number-line-1?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic

Arithmetic on Khan Academy: So you're ready to have some arithmetic fun? You've come to the right spot! It's the first "official" math topic and chalked full of fun exercises and great videos which help you start your journey towards math mastery. We'll cover the big ones: addition, subtraction, multiplication, and division, of course. But we don't stop there. We'll get into negative numbers, absolute value, decimals, and fractions, too. Learning math should be fun, and we plan on having some with you. Ready to get started?

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy’s Arithmetic channel: https://www.youtube.com/channe....l/UCFlJkgTNeC-FYYIQn
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Bhakti movement | World History | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/hu....manities/world-histo

The Bhakti (devotional love) movement gains momentum during Medieval India, highlighting an alternative path for Moksha/Liberation in Hinduism.

World History on Khan Academy: From prehistory to today, this course covers the human events that have shaped our planet.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Why sexual reproduction (faster variation) | How do organisms reproduce | Biology | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's explore how sexual reproduction speeds up variations
More free lessons & practice -https://www.khanacademy.org/sc....ience/class-10-biolo

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Created by Mahesh Shenoy

Alternating current, direct current & what is frequency? | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Current that keeps changing is direction is called alternating current, (AC) whereas the one that never changes its direction is called direct current (DC). Power can be transmitted with low heating losses in the form of AC (not DC). The frequency of the AC in India is 50 Hz. This means the current changes it's direction 100 times per second.
More free lessons & practice https://www.khanacademy.org/sc....ience/in-in-class10t

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Mahesh Shenoy

Intro to life processes | Life processes | Biology | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's explore the various life processes that keep us alive.
More free lessons & practice -https://www.khanacademy.org/sc....ience/in-in-class9th

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Created by Mahesh Shenoy

Magnetic dip & horizontal component of Earth's field | Magnetism & matter | Khan Academ

Thu, 05 Jan 2023 21:46:57 +0000

The angle made by the Earth's magnetic field with the horizontal, in the magnetic meridian, is called the dip. The dip is zero close to the equator and 90 degrees close to the magnetic poles. The dip angle is useful in calculating the horizontal and the vertical components of the Earth's fields.

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Mahesh Shenoy

Binomial theorem | Polynomial and rational functions | Algebra II | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/algebra2/polynomial_and_rational/binomial_theorem/e/binomial-theorem?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Watch the next lesson: https://www.khanacademy.org/math/algebra2/polynomial_and_rational/binomial_theorem/v/pascals-triangle-binomial-theorem?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Missed the previous lesson?
https://www.khanacademy.org/math/algebra2/polynomial_and_rational/polynomial-end-behavior/v/polynomial-end-behavior-exercise-example?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Algebra II on Khan Academy: Your studies in algebra 1 have built a solid foundation from which you can explore linear equations, inequalities, and functions. In algebra 2 we build upon that foundation and not only extend our knowledge of algebra 1, but slowly become capable of tackling the BIG questions of the universe. We'll again touch on systems of equations, inequalities, and functions...but we'll also address exponential and logarithmic functions, logarithms, imaginary and complex numbers, conic sections, and matrices. Don't let these big words intimidate you. We're on this journey with you!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Algebra II channel:
https://www.youtube.com/channe....l/UCsCA3_VozRtgUT7wW
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Electric generator (A.C. & D.C.) | Magnetic effects of current | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's learn how A.C. and D.C. generators (electric generators) work.
More free lessons & practice -https://www.khanacademy.org/sc....ience/in-in-class10t

Khan Academy is a nonprofit organisation with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organisation, we would love your help!

Created by Mahesh Shenoy

Polynomials intro | Mathematics II | High School Math | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/algebra/x2f8bb115

Polynomials are sums of terms of the form kâ xâ ¿, where k is any number and n is a positive integer. For example, 3x+2x-5 is a polynomial. Introduction to polynomials. This video covers common terminology like terms, degree, standard form, monomial, binomial and trinomial.

Watch the next lesson: https://www.khanacademy.org/math/high-school-math/math2/math2-polynomials/math2-polynomials-intro/v/terms-coefficients-and-exponents-in-a-polynomial?utm_source=YT&utm_medium=Desc&utm_campaign=highschoolmath

Missed the previous lesson? https://www.khanacademy.org/math/high-school-math/math2/math2-absolute-value/math2-graphs-of-abs-value/v/scaling-and-reflecting-absolute-value-graphs?utm_source=YT&utm_medium=Desc&utm_campaign=highschoolmath

High School Math on Khan Academy: Did you realize that the word "algebra" comes from Arabic (just like "algorithm" and "al jazeera" and "Aladdin")? And what is so great about algebra anyway? This tutorial doesn't explore algebra so much as it introduces the history and ideas that underpin it.

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academyâ s High School Math channel: https://www.youtube.com/channe....l/UCAj83VTec-NC-g0BK
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Kirchhoff's voltage law | Circuit analysis | Electrical engineering | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/electrical-eng

Kirchhoff's Voltage Law says if you travel around any loop in a circuit, the voltages across the elements add up to zero. Created by Willy McAllister.

Watch the next lesson: https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic/ee-dc-circuit-analysis/v/ee-application-of-the-fundamental-laws-setup?utm_source=YT&utm_medium=Desc&utm_campaign=electricalengineering

Missed the previous lesson? https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic/ee-dc-circuit-analysis/v/ee-kirchhoffs-current-law?utm_source=YT&utm_medium=Desc&utm_campaign=electricalengineering

Electrical engineering on Khan Academy: A summary of the math and science preparation that will help you have the best experience with electrical engineering taught on Khan Academy. Become familiar with engineering numbers and notation, and learn about the two most important electrical quantities: current and voltage.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Electrical Engineering channel: https://www.youtube.com/channe....l/UC8JT97hQjMVWeO0B-
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Electoral college | American civics | US History | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/hu....manities/us-governme

How we elect our President in the United States. Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/humanities/us-history/american-civics-parent/american-civics/v/primaries-and-caucuses?utm_source=YT&utm_medium=Desc&utm_campaign=UShistory

Missed the previous lesson? https://www.khanacademy.org/humanities/us-history/american-civics-parent/american-civics/v/more-fiscal-cliff-analysis?utm_source=YT&utm_medium=Desc&utm_campaign=UShistory

US history on Khan Academy: From a mosquito-ridden backwater to the world's last remaining superpower, the United States of America is a nation with a rich history and a noble goal: government of the people, by the people, for the people. Its citizens' struggle to achieve that goal is a dramatic story stretching over hundreds of years.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s US History channel: https://www.youtube.com/channe....l/UCurOvzSAIe84sW8zw
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Magnetic declination - Earth's magnetism | Magnetism & matter | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Magnetic declination at a point on earth is the angle between the earth's geographic & magnetic meridian at that point. Meridians can be thought of great circles that pass through a point on earth and either the geographic or the magnetic poles.

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Mahesh Shenoy

Mirror formula Numerical (Hindi) | Light | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

We will find the properties of the image formed by a convex mirror.
We will do that using the mirror formula and by applying the sign convention.
Practice and master this concept here:
https://www.khanacademy.org/sc....ience/science-hindi/

Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademyIndia:
https://www.youtube.com/channe....l/UCU0kWLAbhVGxXarmE
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

Solar cells - working (and difference from photodiodes) | Semiconductors | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's explore the working principle of solar cells (photovoltaic cells), and how it's different than a photodiode.

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Mahesh Shenoy

Mendel's experiment (monohybrid cross) | Heredity & Evolution | Biology | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's explore the exciting pea plant experiment by Mendel
More free lessons & practice -https://www.khanacademy.org/sc....ience/in-in-class9th

Khan Academy is a nonprofit organization with the mission of providing free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Created by Mahesh Shenoy

Transformers - working & applications (step up and step down) | A.C. | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Transformers step up (increase) or step down (decrease) AC voltage using the principle of electromagnetic induction - mutual induction. A changing current in the primary coil induces an e.m.f in the secondary. Since the e.m.f generated depends on the number of turns, the voltage induced in the secondary can be changed - stepped up or down - by altering the turn's ratio.

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Created by Mahesh Shenoy

Electric motor | Magnetic effects of current | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's learn the working of an electric motor.
More free lessons & practice -https://www.khanacademy.org/sc....ience/in-in-class10t

Khan Academy is a nonprofit organisation with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organisation, we would love your help!

Created by Mahesh Shenoy

Area of trapezium (Hindi) | Class 8 (India) | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Area of a trapezoid is found with the formula, A=(a+b)/2 x h. Learn how to use the formula to find area of trapezoids.

Equivalent fractions (Hindi) | Class 6 (India) | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Learn how to write equivalent fractions.

Identifying numerators and denominators (Hindi) | Class 6 (India) | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Supriya identifying numerators and denominators in fractions.

Magnetic field due to current carrying loop (Hindi) | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's explore the magnetic field generated due to the current carrying loop.
https://www.khanacademy.org/sc....ience/science-hindi/
Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademyIndia:
https://www.youtube.com/channe....l/UCU0kWLAbhVGxXarmE
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

Visually adding fractions: 5/6+1/4 (Hindi) | Class 6 (India) | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Supriya adds 5/6+1/4 using a fraction model for help.

Intro to fractions (Hindi) | Class 6 (India) | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Supriya divides wholes into equal-sized pieces to create unit fractions.

Magnetic field lines (& their properties) (Hindi) | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's explore what magnetic field lines are, why we draw them, and what their properties are.
Here is the link to the simulation.
https://www.khanacademy.org/science/p...

Ready to learn the next topic?
https://www.khanacademy.org/sc....ience/science-hindi/

Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademyIndia:
https://www.youtube.com/channe....l/UCU0kWLAbhVGxXarmE
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

Right hand generator rule (Hindi) | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's learn how to use our right hand to remember the direction of the induced current when a wire is moved in a magnetic field.
Next topic: https://www.khanacademy.org/sc....ience/science-hindi/
Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademyIndia:
https://www.youtube.com/channe....l/UCU0kWLAbhVGxXarmE
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

Concave lenses (Hindi) | Light | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Concave Lenses.
Practice and master this concept here:
https://www.khanacademy.org/sc....ience/science-hindi/

Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademyIndia:
https://www.youtube.com/channe....l/UCU0kWLAbhVGxXarmE
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

Intro to the Pythagoras theorem (Hindi) | Class 7 (India) | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Introduction to the famous and super important Pythagoras theorem!
In a right angled triangle, the square of hypotenuse is sum of the squares of other two sides.

Intro to voltage (& potential difference) (Hindi) | Electricity | Class 10 Physics | Khan Academ

Thu, 05 Jan 2023 21:46:57 +0000

Let's understand the concept of voltage intuitively.

Statistics intro: Mean, median, & mode (Hindi)

Thu, 05 Jan 2023 21:46:57 +0000

The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set.

Electric motor (Hindi) | Magnetic effect of electric current | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's learn the working of an electric motor, which converts electricity into a rotation.
Ready to learn the next topic?
https://www.khanacademy.org/sc....ience/science-hindi/
Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademyIndia:
https://www.youtube.com/channe....l/UCU0kWLAbhVGxXarmE
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

Structure of human eye (Hindi) | Human eye and the colourful world | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's explore the major parts of our eye, and see what each one does.
Ready to learn the next topic?
https://www.khanacademy.org/sc....ience/science-hindi/

Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
For free. For everyone. Forever. #YouCanLearnAnything
Subscribe to KhanAcademyIndia:
https://www.youtube.com/channe....l/UCU0kWLAbhVGxXarmE
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

Surface Tension and Adhesion (Hindi)

Thu, 05 Jan 2023 21:46:57 +0000

Ram explains the concepts of surface tension, cohesion, and adhesion.

Human ear - structure & working (Hindi) | Physics | Khan Academy

Thu, 05 Jan 2023 21:46:57 +0000

Let's see how our ears convert back and forth motion of air into a beautiful experience we call sound.

Endocrine system (major hormones & functions) | Control & Coordination | Biology | Khan Acad

Thu, 05 Jan 2023 21:14:41 +0000

Let's explore the major endocrine glands, their major hormones, their major functions.
More free lessons & practice -https://www.khanacademy.org/sc....ience/class-10-biolo

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Created by Mahesh Shenoy

Treating units algebraically and dimensional analysis | Algebra I | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/units-algebra/v/figuring-out-units-from-formula?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Missed the previous lesson?
https://www.khanacademy.org/math/algebra/introduction-to-algebra/units-algebra/v/unit-conversion-with-fractions?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Algebra channel:
https://www.youtube.com/channe....l/UCYZrCV8PNENpJt36V
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

States of matter | States of matter and intermolecular forces | Chemistry | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/chemistry/stat

Introduction to the states or phases of matter.

Watch the next lesson: https://www.khanacademy.org/sc....ience/chemistry/stat-follow-up?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry

Missed the previous lesson? https://www.khanacademy.org/science/chemistry/gases-and-kinetic-molecular-theory/ideal-gas-laws/v/maxwell-boltzmann-distribution?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry

Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channe....l/UCyEot66LrwWFEMONv
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Transistor working | Class 12 (India) | Physics | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Let's explore what transistors are and they (more specifically a Bipolar junction transistor) work as an amplifier.
Learn the next topic here --https://www.khanacademy.org/sc....ience/in-in-class-12
Class 12 Semiconductors: We cannot imagine our life without computers today. But what makes a computer tick? What's making this technology grow at such an exponential rate? It's all due to semiconductors. As unbelievable as that might sound, altering the properties of semiconductors allows us to build these computers. In this topic, we will explore the world of semiconductors. It's a journey from what semiconductors are all the way to creating building blocks of these computers.

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Created by Mahesh Shenoy

DNA replication and RNA transcription and translation | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/ap-biology/gen

Watch the next lesson: https://www.khanacademy.org/science/biology/macromolecules/nucleic-acids/v/molecular-structure-of-dna?utm_source=YT&utm_medium=Desc&utm_campaign=biology

Missed the previous lesson? https://www.khanacademy.org/science/biology/macromolecules/nucleic-acids/v/dna-deoxyribonucleic-acid?utm_source=YT&utm_medium=Desc&utm_campaign=biology

Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy's Biology channel: https://www.youtube.com/channe....l/UC82qE46vcTn7lP4tK
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Breaking down vectors into components | Vectors | Precalculus | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/vectors-precalc/magnitude-direction/e/adding-vectors-in-magnitude-and-direction-form?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Watch the next lesson: https://www.khanacademy.org/math/precalculus/vectors-precalc/magnitude-direction/v/mag-dir-vec-sums-2?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/vectors-precalc/magnitude-direction/v/unit-vector-same-direction?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn't mean anything unless you have some knowledge of what calculus is. Let's keep it simple, shall we? Calculus is a conceptual framework which provides systematic techniques for solving problems. These problems are appropriately applicable to analytic geometry and algebra. Therefore....precalculus gives you the background for the mathematical concepts, problems, issues and techniques that appear in calculus, including trigonometry, functions, complex numbers, vectors, matrices, and others. There you have it ladies and gentlemen....an introduction to precalculus!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Precalculus channel:
https://www.youtube.com/channe....l/UCBeHztHRWuVvnlwm2
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Systemic thinking about cancer | Miscellaneous | Heatlh & Medicine | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Dr. David Agus discusses thinking systemically about cancer and other things. Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/science/health-and-medicine/healthcare-misc/v/inflammation?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine

Missed the previous lesson? https://www.khanacademy.org/science/health-and-medicine/healthcare-misc/v/ritual-of-the-bedside-exam?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine

Health & Medicine on Khan Academy: No organ quite symbolizes love like the heart. One reason may be that your heart helps you live, by moving ~5 liters (1.3 gallons) of blood through almost 100,000 kilometers (62,000 miles) of blood vessels every single minute! It has to do this all day, everyday, without ever taking a vacation! Now that is true love. Learn about how the heart works, how blood flows through the heart, where the blood goes after it leaves the heart, and what your heart is doing when it makes the sound “Lub Dub.”

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Health & Medicine channel: https://www.youtube.com/channe....l/UC1RAowgA3q8Gl7exS
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Word problem: making change | 4th grade | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

To "make change" means to be able to give people the correct amount back in dollars and cents when paying for something. This is one of the most common and important skills haivng to do with unit conversion. Let's do it!

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-measurement-topic/cc-4th-money/e/measuring-and-converting-money-word-problems?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade

Watch the next lesson: https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-measurement-topic/cc-4th-money/v/currency-conversion-example?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade

Missed the previous lesson? https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-measurement-topic/cc-4th-time/v/time-word-problem?utm_source=YT&utm_medium=Desc&utm_campaign=4thgrade

Grade 4th on Khan Academy: 4th grade is the time to start really fine-tuning your arithmetic skills. Not only will you be a multi-digit addition and subtraction rockstar, but you'll extend the multiplication and division that you started in 3rd grade to several digits. You'll also discover that you sometimes have something left over (called a "remainder") when you divide. In 3rd grade you learned what a fraction is. Now you'll start adding, subtracting, multiplying, and comparing them. You'll also see how they relate to decimals. On other fronts, you'll learn how to convert between different units (which is super important when comparing the size and speed of robot unicorns in different countries) and continue your journey thinking about various shapes in two dimensions. Some of the foundational concepts of geometry (like lines, rays and angles) also get introduced. As always, we'll round this out with a healthy dose of applied word problems and explorations of number patterns and properties (including the ideas of factors, multiples and prime numbers). The fun must not stop! (Content was selected for this grade level based on a typical curriculum in the United States.)

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan AcademyÂÃÂªs 4th grade channel:
https://www.youtube.com/channe....l/UC3w8CkX9EJegLVKUj
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Fertilisation, zygote, embryo, germination | How do organisms reproduce | Biology | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Let's explore how fertilisation takes place in flowers.
More free lessons & practice -https://www.khanacademy.org/sc....ience/class-10-biolo

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Created by Mahesh Shenoy

Introduction to long division | Multiplication and division | Arithmetic | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/arithmetic-home/m

Dividing into larger numbers. Introduction to long division without remainders

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/multiplication-division/long_division/e/division_1.5?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic

Watch the next lesson: https://www.khanacademy.org/math/arithmetic/multiplication-division/long_division/v/introduction-to-remainders?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic

Missed the previous lesson?
https://www.khanacademy.org/math/arithmetic/multiplication-division/multi_digit_multiplication/v/multiplication-7-old-video-giving-more-examples?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic

Arithmetic on Khan Academy: So you're ready to have some arithmetic fun? You've come to the right spot! It's the first "official" math topic and chalked full of fun exercises and great videos which help you start your journey towards math mastery. We'll cover the big ones: addition, subtraction, multiplication, and division, of course. But we don't stop there. We'll get into negative numbers, absolute value, decimals, and fractions, too. Learning math should be fun, and we plan on having some with you. Ready to get started?

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to KhanAcademy’s Arithmetic channel: https://www.youtube.com/channe....l/UCFlJkgTNeC-FYYIQn
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Big bang introduction | Scale of the universe | Cosmology & Astronomy | Khan Academy

Thu, 05 Jan 2023 21:14:41 +0000

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/cosmology-and-

Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/big-bang-expansion-topic/v/radius-of-observable-universe?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy

Missed the previous lesson? https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/light-fundamental-forces/v/four-fundamental-forces?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy

Cosmology & Astronomy on Khan Academy: The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to the solar system which is tiny compared to the distance to the next star. Oh, did we mention that there are over 100 billion stars in our galaxy (which is about 100,000 light years in diameter) which is one of hundreds of billions of galaxies in just the observable universe (which might be infinite for all we know). Don't feel small. We find it liberating. Your everyday human stresses are nothing compared to this enormity that we are a part of. Enjoy the fact that we get to be part of this vastness!

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Cosmology & Astronomy channel: https://www.youtube.com/channe....l/UChNPnEkW8LYZ5Rwi8
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us