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

The US Constitution established three branches of government: legislative, executive, and judicial. In this video, Kim Kutz Elliott discusses how the Framers employed the concepts of separation of powers and checks and balances to limit the power of government.

View more lessons or practice this subject at https://www.khanacademy.org/hu....manities/us-history/?utm_source=youtube&utm_medium=desc&utm_campaign=apushistory

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 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

Myelin sheaths, nodes of Ranvier, and saltatory conduction in neurons. Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/nervous-system-introduction/v/synapse-structure?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine

Missed the previous lesson? https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/nervous-system-introduction/v/electrotonic-action-potential?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

Practice solving systems of equations through simple elimination

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/algebra2/systems_eq_ineq/systems_tutorial_precalc/e/systems_of_equations_with_elimination_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Watch the next lesson: https://www.khanacademy.org/math/algebra2/systems_eq_ineq/systems_tutorial_precalc/v/how-many-bags-of-potato-chips-do-people-eat?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Missed the previous lesson?
https://www.khanacademy.org/math/algebra2/systems_eq_ineq/systems_tutorial_precalc/v/king-s-cupcakes-solving-systems-by-elimination?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

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

Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/humanities/world-history/euro-hist/wo/v/beginning-of-world-war-ii?utm_source=YT&utm_medium=Desc&utm_campaign=worldhistory

Missed the previous lesson? https://www.khanacademy.org/humanities/world-history/euro-hist/mussolini-fascism/v/mussolini-aligns-with-hitler?utm_source=YT&utm_medium=Desc&utm_campaign=worldhistory

World history on Khan Academy: From the earliest civilizations to the modern world, geography, religion, trade, and politics have bound peoples and nations together — and torn them apart. Take a journey through time and space and discover the fascinating history behind the complex world we inhabit today.

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 World History channel: https://www.youtube.com/channe....l/UC6KRvvmvkCchFMo2E
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

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

Primer on identifying balanced and unbalanced forces. Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/science/physics/forces-newtons-laws/balanced-unbalanced-forces/v/unbalanced-forces-and-motion?utm_source=YT&utm_medium=Desc&utm_campaign=physics

Missed the previous lesson? https://www.khanacademy.org/science/physics/forces-newtons-laws/balanced-unbalanced-forces/v/unbalanced-forces-and-motion?utm_source=YT&utm_medium=Desc&utm_campaign=physics

Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.

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 Physics channel: https://www.youtube.com/channe....l/UC0oGarQW2lE5PxhGo
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/seq_induction/seq_and_series/e/arithmetic_sequences_1?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Watch the next lesson: https://www.khanacademy.org/math/precalculus/seq_induction/seq_and_series/v/finding-the-100th-term-in-a-sequence?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/seq_induction/seq_and_series/v/explicit-and-recursive-definitions-of-sequences?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

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/e/graphs-of-trigonometric-functions?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Watch the next lesson: https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/v/plotting-trig-features?utm_source=YT&utm_medium=Desc&utm_campaign=Trigonometry

Missed the previous lesson?
https://www.khanacademy.org/math/trigonometry/trig-function-graphs/trig_graphs_tutorial/v/matching-a-trigonometric-function-to-its-graph?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 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 Trigonometry channel:
https://www.youtube.com/channe....l/UCYQSs1lFJZKpyqNQQ
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Learn about dialog and other reading comprehension lessons in the FREE Khan Academy Kids app! https://go.learn.khanacademy.o....rg/khanacademy/YouTu

In this video, Ollo makes predictions about what will happen next in the story. Pictures and text in the story can help inform these educated guesses.

Visit us at http://www.khankids.org to learn more about Khan Academy Kids, a free educational app for preschool through 2nd grade available on Apple, Google Play, and Amazon app stores.

You can also access other videos on our Reading Comprehension playlist here: http://khan.co/KhanKids-ReadingComprehension.

Subscribe to our channel for more videos like this.

Questions? Reach our team at khankids@khanacademy.org.

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The British Government kept the “Operation Unthinkable” document a secret, even from their closest allies, the Americans. After the war, Churchill made no reference to it, not even in his memoirs. It was declassified only a half a century after, in 1998. It was only then that the world got to know how close they had been to World War III.

Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

SIMPLE HISTORY MERCHANDISE

Get the Simple History books on Amazon:

https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY

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Simple history gives you the facts, simple!

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Credit:
Created by Daniel Turner (B.A. (Hons) in History, University College London)
Script: Dejan Milivojevic
Narrator:

Chris Kane
https://vocalforge.com/

Gunslingers - The Wild West -4 Mini stories.

From 1850 to 1890 the Old west had little in the way of government law or police.

Men would carry guns on them to protect themselves: some were outlaws, and some were the lawmen who tried to stop them.

Good aim and speed with a gun and a willingness to pull the trigger would make them famous.

Today we call them gunfighters or gunslingers, but back then they were called gunmen or shootists.

Support the cartoons on patreon:

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Simple History: The Wild West

https://www.amazon.com/Simple-....History-Wild-Daniel-

Simple history gives you the facts, simple!

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Credit:

Narrator:

Bryan 'Lazlo' Beauregard

Artwork:

Daniel turner

Animation:
Daniel Turner
Charles-Jean Boucher
www.cjbouchermedia.com

Music

First Call by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/r....oyalty-free/index.ht

Cowboy Sting by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/r....oyalty-free/index.ht

Drifter ( Spaghetti western) ~ ©NADA Copyright Free Music.

Plantation by Audionautix is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/

Back To The Wood by Audionautix is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/

Title: Just Me and You
Author: Grimo (http://[a]www.gosoundtrack.com%2Fthe-team%2F%29[/a]
Source: www.gosoundtrack.com (http://http//www.gosoundtrack.com/album/golden-club/)
Licence: CC By 4.0 (http://creativecommons.org/licenses/by/4.0/)

The Wild West - Ross Bugden

Pictures: Wikimedia Commons (Public Domain)

#Shorts

This chemistry video tutorial explains how to use Slater's Rule to estimate the effective nuclear charge of an electron in an atom. It could be a core electron or a valence electron.

Speed of Light, Frequency, Wavelength: https://www.youtube.com/watch?v=LgYMxH1LCdo

Photon Energy:
https://www.youtube.com/watch?v=PYNSopwd1l4

The Photoelectric Effect:
https://www.youtube.com/watch?v=-LECEvusk8E

De Broglie Wavelength:
https://www.youtube.com/watch?v=cYyFPFU6s_A

The Bohr Model of Hydrogen:
https://www.youtube.com/watch?v=mXxsT1ut35Q

Heisenberg's Uncertainty Principle:
https://www.youtube.com/watch?v=BNYz5EKXVeI

________________________________
Intro to Quantum Numbers:
https://www.youtube.com/watch?v=eRIN9CPDrpo

Orbitals & Atomic Energy Levels:
https://www.youtube.com/watch?v=4sLXUr2HWIs

Maximum Number of Electrons:
https://www.youtube.com/watch?v=UNE-7AuiMGs

Intro to Electron Configuration:
https://www.youtube.com/watch?v=NIwcDnFjj98

Electron Configuration Exceptions:
https://www.youtube.com/watch?v=Ur2PuzJ7KWs

Noble Gas Notation:
https://www.youtube.com/watch?v=6MAKMnZdfbs

Electron Configuration of Ions:
https://www.youtube.com/watch?v=nlZa8lN_-Ds

_______________________________
Orbital Diagrams:
https://www.youtube.com/watch?v=6dRdMy9tgzE

Paired & Unpaired Electrons:
https://www.youtube.com/watch?v=xwWJf48yfNs

Aufbau's Principle & Hund's Rule:
https://www.youtube.com/watch?v=C6afrc1QS6Y

Paramagnetic & Diamagnetic Elements:
https://www.youtube.com/watch?v=SO983iq9GaI

Valence Electrons & Periodic Table:
https://www.youtube.com/watch?v=FPk2ziB9iX0

Effective Nuclear Charge:
https://www.youtube.com/watch?v=JDsMR1bHGO4

_________________________________
Slater's Rule:
https://www.youtube.com/watch?v=TaYUOiEe6OA

How To Identify The Element:
https://www.youtube.com/watch?v=4qwJIJUaIeQ

Quantum Numbers - Mega Review:
https://www.youtube.com/watch?v=lPptuKlCM6k

Quantum Numbers - Practice Test:
https://www.youtube.com/watch?v=E-nOH18dF-c

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

This physics video tutorial explains the relationship between electric flux and gauss's law. It shows you how to calculate the electric flux through a surface such as a disk or a square and how to calculate it using a sphere and a cube. Electric flux is the product between the perpendicular component of the electric field relative to the surface and the area of that surface. This video discusses the difference between the angles phi and theta and the terms inward electric flux vs outward electric flux. This video contains plenty of examples and practice problems.

Physics 2 - Basic Introduction:
https://www.youtube.com/watch?v=rHgKLIYcZOI

Electric Charge - Physics:
https://www.youtube.com/watch?v=VD009jiZreo

Conservation of Electric Charge:
https://www.youtube.com/watch?v=OSUvXC1pACA

Coulomb's Law and Electric Force:
https://www.youtube.com/watch?v=kCp5yYjo9zE

Electric Fields:
https://www.youtube.com/watch?v=V9RLc9EX1so

________________________
Electric Dipole Moment:
https://www.youtube.com/watch?v=Mt9Rn2Ek0SU

Gauss Law Problems:
https://www.youtube.com/watch?v=IS1hyHBh3QQ

Electric Potential:
https://www.youtube.com/watch?v=LzKMQByFSLc

Equipotential Lines:
https://www.youtube.com/watch?v=j_Cy891cmIY

_______________________
The Electron Volt:
https://www.youtube.com/watch?v=DjQl4J-jePc

Electric Potential Energy:
https://www.youtube.com/watch?v=KoZ61FujkRk

Parallel Plate Capacitor:
https://www.youtube.com/watch?v=7jJhHtegjto

Energy Stored In a Capacitor:
https://www.youtube.com/watch?v=PTyB6_Kt_5A

Physics PDF Worksheets:
https://www.video-tutor.net/ph....ysics-basic-introduc

This chemistry video explains the concept of acids and bases by the arrhenius definition, bronsted - lowry and lewis acid base definition. It also shows you how to identify conjugate acid base pairs.

Acids and Bases - Introduction: https://www.youtube.com/watch?v=FM2MpMbV0rw

The 7 Strong Acids to Memorize:
https://www.youtube.com/watch?v=AaYQ_ZiE7AY

Conjugate Acid-Base Pairs:
https://www.youtube.com/watch?v=OP6RKqSp1Xw

pH and pOH Calculations:
https://www.youtube.com/watch?v=OEW4-Sfyvik

Estimate The pH Without a Calculator:
https://www.youtube.com/watch?v=Mgph6gmIuwg

_______________________________
Autoionization of Water - Kw:
https://www.youtube.com/watch?v=ID5K1Yt7Yho

Which Acid Is Stronger?
https://www.youtube.com/watch?v=PdqFSw_SRug

Acidic, Basic, & Neutral Salts:
https://www.youtube.com/watch?v=-6Pxr7SRgeo

pH of Weak Acids:
https://www.youtube.com/watch?v=kJTCuRSeh6g

Buffer Solutions:
https://www.youtube.com/watch?v=kBzPTEB21Po

_________________________________
Polyprotic Acid Base Equilibria:
https://www.youtube.com/watch?v=nXugjkSQtTI

Acid Base Titration Curves:
https://www.youtube.com/watch?v=LNG9rhmBu8E

Acids and Bases - Practice Test:
https://www.youtube.com/watch?v=hmGPK0cuO7o

Ksp - Molar Solubility & Ice Tables:
https://www.youtube.com/watch?v=kO-9OajoPZs

Complex Ion Equilibria:
https://www.youtube.com/watch?v=nkiMFM19yNE

___________________________________
Gibbs Free Energy, Entropy & Enthalpy:
https://www.youtube.com/watch?v=2KuNzB0cZL4

Entropy - 2nd Law of Thermodynamics:
https://www.youtube.com/watch?v=lN66F9V7-_Q

Electrochemistry Practice Problems:
https://www.youtube.com/watch?v=S9frctwDyL0

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

Chemistry PDF Worksheets:
https://www.video-tutor.net/chemistry-basic-introduction.html

This chemistry video tutorial explains how to write chemical formulas of ionic compounds including those with transition metals and polyatomic ions.

Chemistry - Basic Introduction: https://www.youtube.com/watch?v=-KfG8kH-r3Y

Unit Conversion Problems:
https://www.youtube.com/watch?v=eK8gXP3pImU

Physical Vs Chemical Properties:
https://www.youtube.com/watch?v=gH1R87ahFvA

Elements, Atoms, & Molecules:
https://www.youtube.com/watch?v=pSJeMJaCkVU

Protons, Neutrons, & Electrons:
https://www.youtube.com/watch?v=65dDZulPhtg

Average Atomic Mass:
https://www.youtube.com/watch?v=JT18bDAadQ0

___________________________________
Ionic and Covalent Bonding:
https://www.youtube.com/watch?v=uDFLHTDJ4XA

Naming Molecular Compounds:
https://www.youtube.com/watch?v=3agUL7-ezXk

Memorize The Polyatomic Ions:
https://www.youtube.com/watch?v=FXBEh7nd9KQ

Writing Formulas - Molecular Compounds:
https://www.youtube.com/watch?v=KrJnnwLDY6o

Naming Ionic Compounds:
https://www.youtube.com/watch?v=5rSgduXqhhU

_____________________________________
Naming Transition Metal Compounds:
https://www.youtube.com/watch?v=eM5mDnQX0k8

Writing Formulas - Ionic Compounds:
https://www.youtube.com/watch?v=GJ4Mds0CWLE

Writing Formulas - Polyatomic Ions:
https://www.youtube.com/watch?v=stu2omPRvbs

Naming Acids In Chemistry:
https://www.youtube.com/watch?v=r7PfTMAFYgs

Introduction to Moles:
https://www.youtube.com/watch?v=EowJsC7phzw

_____________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

This video provides an introduction to probability. It explains how to calculate the probability of an event occurring in addition to determining the sample space of an event using tree diagrams.

Introduction to Probability: https://www.youtube.com/watch?v=SkidyDQuupA

Probability Formulas:
https://www.youtube.com/watch?v=bddckR734aM

Probability Explained:
https://www.youtube.com/watch?v=UORztmWGY6Q

Probability With Geometry:
https://www.youtube.com/watch?v=DeH5aHWxEaI

Probability of Complementary Events:
https://www.youtube.com/watch?v=0T-CaQCiSf4

Conditional Probability:
https://www.youtube.com/watch?v=sqDVrXq_eh0

__________________________________
Independent and Dependent Events:
https://www.youtube.com/watch?v=lWAdPyvm400

Probability of Mutual Exclusive Events:
https://www.youtube.com/watch?v=X6usGgwXFyU

Multiplication and Addition Rule:
https://www.youtube.com/watch?v=94AmzeR9n2w

Compound Probability:
https://www.youtube.com/watch?v=EHU6pVSczb4

Expected Value:
https://www.youtube.com/watch?v=b6VK2VPMXNI

Probability Tree Diagrams:
https://www.youtube.com/watch?v=w4wKXVwtGac

___________________________________
Bayes Theorem:
https://www.youtube.com/watch?v=OByl4RJxnKA

Probability - Binomial Distribution:
https://www.youtube.com/watch?v=3PWKQiLK41M

Probability - Geometric Distribution:
https://www.youtube.com/watch?v=d5iAWPnrH6w

Probability - Poisson Distribution:
https://www.youtube.com/watch?v=m0o-585xwW0

Continuous Probability Distributions:
https://www.youtube.com/watch?v=QxqxdQ_g2uw

Probability Density Functions:
https://www.youtube.com/watch?v=3xAIWiTJCvE

__________________________________
Probability - Uniform Distributions:
https://www.youtube.com/watch?v=KfunVw-0AH0

Probability - Exponential Distributions:
https://www.youtube.com/watch?v=J3KSjZFVbis

Probability - Normal Distributions (Calculus):
https://www.youtube.com/watch?v=gHBL5Zau3NE

Probability - Standard Normal Distributions:
https://www.youtube.com/watch?v=CjF_yQ2N638

Probability - The Law of Large Numbers:
https://www.youtube.com/watch?v=ihTpK6dXSas

___________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

Thousands of parents and educators are turning to the kids’ learning app that makes real learning truly fun. Try Kids Academy with 3-day FREE TRIAL! https://bit.ly/2GuGyL2​
__________________________________________________________________________________________________
Our Sun, the most important star in our sky. All living things on the Earth depend on the sun to warm the earth, provide light during the day, and for changing seasons and differing climates around the world. The Earth's rotation, day and night as well as seasons can be an abstract idea for children, but Kids Academy has created this video to bring these concepts to life for all learners. Children will gain a better understanding of how our Sun and Earth function together and the effects it has on our everyday life as well as long term effects such as seasons.

The earth's rotation (how it spins), revolution around the sun, and the connection to day/night and seasons are animated and explained in this engaging video. Connections are made between the Earth’s rotation around the Sun and day and night. The tilt of the Earth on its axis affects the angle that its light hits Earth and therefore warms the earth. This means that the tilt of the earth affects climate in different parts of the world. For example, the sun's light does not ever directly hit the North and South Pole, so these habitats are very cold because they never get enough of the Sun’s energy to warm them up. On the other hand, the equator is right in the middle of the Earth, so it gets a lot of our Sun's light, and it is always hot there. The Sun impacts our daily lives in many different ways from when we get up and go to sleep, to the holidays we celebrate and activities we partake in.

Connect with us on :
Facebook: https://www.facebook.com/KidsAcademyCompany
Twitter: https://twitter.com/KidsAcademyCo​

Install for free our Kids Academy Talented and Gifted Program for kids aged 2-10:
App Store: https://smart.link/59833db06a6b8​
Google Play: https://smart.link/5a1bea3272481​
Our website: https://bit.ly/2GuGyL2

Vocabulary | #Fruit #水果名稱
#pomegranate #石榴
#fig #無花果
#grapefruit #柚子
#avocado #牛油果
#plum #李子 #布冧
#longan #龍眼
#coconut #椰子
#kiwano #刺角瓜 #火參果 #窩瓜
#peach #桃
#startfruit #楊桃
#lemon #檸檬
#lychee #荔枝
#pineapple #菠蘿
#pear #梨子

📍📍歡迎收看《English Speaking系列》📍📍
Talking about different festivals
👉https://youtu.be/7XWE_QB0qEk
Introduce your school
👉https://www.youtube.com/watch?v=DPfvjdEI7Dw
Back to school
👉https://www.youtube.com/watch?v=NSv5QyPmhpw
Good manners_actions
👉https://youtu.be/_Swu0JtZke0
Good manners
👉https://www.youtube.com/watch?v=HGME2UCt6-M&t=29s
Talking about daily routines
👉https://youtu.be/Np8mJ1uw8c8

📍📍歡迎收看《Grammar系列》📍📍
Lesson4_common mistakes
👉https://youtu.be/A7Yz6eEcYPs
Lesson3_irregular verbs_part2
👉https://youtu.be/vE6AnyrYDZQ
Lesson2_irregular verbs_part 1
👉https://youtu.be/C_p_r053MeQ
Lesson1_Opposite words
👉https://youtu.be/ftz3u46E0Zo

📍📍歡迎收看《Cooking系列》📍📍
Make fresh juice
👉https://www.youtube.com/watch?v=VFOo2RW_qoI

📍📍歡迎收看《Shorts系列》📍📍
Funny jokes 3
👉https://youtube.com/shorts/VJe4DCE9lLs
Funny joke 2
👉https://youtube.com/shorts/2ouEf37QtdQ
Funny joke 1
👉https://youtube.com/shorts/OJ2-YEfl2uw
Tongue twister_birdie vs turdie vs pie
👉https://youtube.com/shorts/yvOv4EVm6Xc
Tongue twister_scream vs ice cream
👉https://youtube.com/shorts/KBi79AOOPow
Tongue twister_fuzzy vs wuzzy
👉https://youtube.com/shorts/pwGPW_cWdxc
Tongue twister_whether vs weather
👉https://youtube.com/shorts/_3yjqCC4ASA
Read with me_Irregular verbs Part A
👉https://youtube.com/shorts/OfA0FlrxVy8
Read with me_Irregular verbs Part B
👉https://youtube.com/shorts/GV9iXpKMUAk

📍📍歡迎收看《Fun Games系列》📍📍
Make a guess
👉https://youtu.be/J0E2LF9_chU
Quiz Time
👉https://youtu.be/M4JrGzedjH0
Quiz Time
👉https://youtu.be/k7cTb77sh1Q
Quiz Time
👉https://www.youtube.com/watch?v=QGwhG4Mk_Ow&t=5s
Quiz Time
👉https://www.youtube.com/watch?v=xDUJPNRh3mA


📍📍歡迎收看《Basic conversation系列》📍📍
Basic conversation Lesson 8_Talking about your best friend
👉https://youtu.be/NknxeVxhP7A
Basic conversation Fun Lesson_Different languages
👉https://youtu.be/mCJPRD7pahw
Basic conversation Lesson 7_Apply for a library card and borrow books
👉https://www.youtube.com/watch?v=5XCmL9clkQY
Basic conversation Lesson 6_Ordering food
👉https://youtu.be/xaJKiHn6vuc
Basic conversation Lesson 5_Visiting friends
👉https://youtu.be/5TkeC8iirVA
Basic conversation Lesson 4_Making phone calls
👉https://youtu.be/B2CUxLSK5CU
Basic conversation Lesson 3_Types of weather
👉https://youtu.be/ivyo-t50qnw
Basic conversation Lesson 2_Days in a week
👉https://youtu.be/fAtrVak5qLo
Basic conversation Lesson 1_Greetings
👉https://youtu.be/hl_foOF6EjY

📍📍歡迎收看其他《Vocabulary詞匯系列》📍📍
Animals on land_陸地動物
👉https://youtu.be/XxZXjGkJkCQ
Animals in the sea_海洋動物
👉https://youtu.be/gN7GsS6cCeg
Parts of the body_身體部份名稱
👉https://youtu.be/GviCG650sng
Theme Park facilities_主題公園設施
👉https://youtu.be/RiP4etv1ANs
Famous Landmarks_國家名勝地標名稱
👉https://youtu.be/-_rRauEiDic
Colour_顏色
👉Part 2https://youtu.be/78xUTO1My_E
Furniture in the living room_客廳內傢俱名稱
👉https://www.youtube.com/watch?v=smN7hHwHL1g
2D shapes_平面形狀的名稱
👉https://www.youtube.com/watch?v=P4wT5wmqIRY
Jobs_職業名稱
👉https://www.youtube.com/watch?v=NYDTE...
Hairstyle_不同髮型的英文名稱
👉https://www.youtube.com/watch?v=PU_BB2Kvj_w
Solar System_太陽系
👉https://www.youtube.com/watch?v=Qwwczge-_ks
Tableware_餐具名稱
👉https://www.youtube.com/watch?v=rm4FNlRQZxE
Hats_帽子的名稱
👉https://www.youtube.com/watch?v=Pl3g8JgXeGc
Egg_蛋的不同煮法名稱
👉https://www.youtube.com/watch?v=alwVK7zoplc
National Flags_國家及國旗
👉https://youtu.be/tBwHd6XHfE0
The 12 Chinese Zodiac_12生肖
👉https://youtu.be/ii8djvnF-pk
Fruit_水果名稱
👉https://youtu.be/ozwI9sk-bo4
Stationery_文具名稱
👉https://youtu.be/jsjwHTaWfkg
Colour_顏色 Part 1
👉https://youtu.be/AiiGKUEuWx4

📍📍歡迎收看《停課不停學系列》 📍📍
Number 1-10
👉https://youtu.be/wVn_0fY5i1o
Fruit
👉https://youtu.be/C3jy63nGhgA
Transportation in HK
👉https://youtu.be/5qQX0ymwwqo
Vegetables
👉https://m.youtube.com/watch?v=iu1OnlmqRI4
Sports
👉https://youtu.be/eF_Dv6owlM8
Relaxing activities
👉https://www.youtube.com/watch?v=ROv7OlyXe0A

📍📍歡迎收看《Writing a composition系列》 📍📍
👉School Picnic Day
https://youtu.be/GNXyS84JrQo
At the beach
👉https://www.youtube.com/watch?v=WcERiNMpb9s

📍📍歡迎收看《小一叩門面試》系列 📍📍
👉School Interview_Part 1:Talking about yourself
https://www.youtube.com/watch?v=wWTwr2o4_uo
👉小一叩門：不能不看題目背後的真正意義
https://m.youtube.com/watch?v=msqXn02v8tw
👉小一叩門：面試陷阱
https://m.youtube.com/watch?v=OrTx4B_cnkw

Quiz - https://www.aatoonskids.com/re....ctangle-quiz-for-kid

Read on web - https://www.aatoonskids.com/re....ctangle-definition-p

Rectangle Introduction | Area of Rectangle | Perimeter of Rectangle | Maths for Grade 3 | Properties of Rectangle | Rectangle Quiz for kids | @AAtoonsKids

_____________________________________________________________
Chapters
00:00 Introduction
00:22 Definition of Rectangle
00:39 Properties of Rectangle
01:40 Area of Rectangle
02:35 Perimeter of Rectangle
04:06 Problems sums on Rectangle
07:48 End
_______________________________________________________________

AAtoons Kids
play N learn
Website - http://www.aatoonskids.com

Facebook Page - https://www.facebook.com/aatoonskids1
Twitter - https://twitter.com/aatoonskids
_______________________________________________________________
Related Video Links

Maths Shapes - https://youtu.be/svefg98tDwk

Maths Quiz - https://youtu.be/s6hfBOnGtK0

Ascending and Descending Orders - https://youtu.be/OwxwGZ_c2Nc

Simplification Problems - https://youtu.be/Dce12tIG2zc

List of Squares - https://youtu.be/IYWrhHqCBtg

Mental Maths Quiz - https://youtu.be/JC0ASSHfzWY

Mental Maths Quiz 2 - https://youtu.be/Xs_tCCKsBTA

Calculation of 100 - https://youtu.be/DCHZwH25rzk

_________________________________________________________________________________
#rectangles
#areaofrectangle
#perimeterofrectangle
#learn_mathematics
#maths_for_kids
#rectangleproblems
#learn_shapes
#maths_quiz
#quiz_for_kids
#mathsforgrade4
#grade5maths
#AAtoonsKids
________________________________________

An introduction to three gas laws. I cover Boyle's law,charles's law, and Gay Lussac's.
For each law I cover the constant, what the law states, the formula, and the density.

00:00 Introduction to Gas Laws
00:20 Boyle's Law explanation
01:07 Charles's Law
01:53 Gay Lussac's law or pressure temperature law

Paleozoic EraPaleozoic era was 544 to 245 million years ago
Paleozoic means “ ancient life” and is part of the phanerozoic eon along with the cenozoic, and mesozoic eras
Let’s hit some highlights of this era
Early during the Paleozoic era trilobites, echinoderms, and other marine invertebrates such as coral dominated the oceans.
Jawless fish also lived during this era
Evently sharks and other bony fish appear
However, as time passed life did not remain in the sea.
Land plants began to appear such as ferns and some trees later in this era
Life was also crawling out of the ocean
The first vertebrates appeared Among these vertebrates was a tetrapod which was a vertebrate that could live on land
Other vertebrates would appear including snakes,crocodiles,
Reptiles and insects scatter throughout the world and amphibians appear
The supercontinent Rodinia brook apart early in this era, but by the end of the era the supercontinent Pangea was formed.

Mitochondria are amazing and cool
They are found in plants... animals,....fungi,.....protists, and any other eukaryotic cell

They can quickly change shape and move around the cell when needed.
When the cell needs more energy, the mitochondria can reproduce by growing larger and then dividing. For example, say you want to get in shape. As you exercise more the mitochondria in your muscles will increase in number and navigate to the edges of the cell, which allows these muscle cells to have more energy.
If the cell needs less energy, some mitochondria will die or become inactive.
The mitochondria are the powerhouse of the cell because of their ATP production. The function of the mitochondria is to boost your energy by performing cellular respiration.

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https://www.youtube.com/watch?v=AqNkXA8dog8

In this video, you will learn how to finalize a song you are writing.

We hope you are enjoying this video! For more in-depth learning, check out Miacademy.co (https://www.parents.miacademy.co/), an online learning platform with lessons and practice games that go along with our videos. Use coupon code VIDEOSPECIAL for a discount. Good for homeschoolers, Parents, Teachers, or anyone with kids in grades K-8.

Miacademy also offers many hands-on learning activities including a business simulation, writing in the Miacademy weekly, and creating artwork. Teaching social skills is also one of the key values at Miacademy. On the site, kids can interact safely in a moderated environment and share their artwork, videos, and ideas with each other.

We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you'd like us to cover any additional topics, please let us know. For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!

Get a 35% discount on our website - practice games, quizzes, and more to go along with each video: https://www.parents.miacademy.....co/coupon?code=VIDEO

In this video, you will learn about the distributive property over addition.

We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you'd like us to cover any additional topics, please let us know.

For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!