In this episode of Crash Course Kids, Sabrina talks about why things on the bottom of the Earth, don't just fall off into space. Plus... PENGUINS! This first series is based on 5th grade science. We're super excited and hope you enjoy...

Tom Shannon shows off his gravity-defying, otherworldly sculpture -- made of simple, earthly materials -- that floats and spins like planets on magnets and suspension wire. It's science-inspired art at its most heavenly.

The size, shape, and designs of the balls used in sports are usually the results of decades or even centuries of trial and error, and the cute, dimply li'l golf ball is no different!

Mr. Andersen shows you how to read a position vs. time graph to determine the velocity of an object. Objects that are accelerating are covered in this podcast. He also introduces the tangent line (or the magic pen).

Paul Andersen attempts to explain Gibbs Free Energy. He begins by using three spontaneous reactions to explain how a change in enthalpy, entropy and temperature can affect the free energy of a system. He then applies this concept to...

NASA just announced the five finalists for the next Discovery missions. It looks like we’ll be sending probes to Venus, studying asteroids, or both!

Do you know how many people have been to the moon? Only 12! Part of the reason it's so few is because of how difficult it is to escape Earth and get into space in the first place. In this episode of Crash Course Kids, Sabrina talks about...

Time travel is a staple of science fiction stories, but is it actually possible? It turns out nature does allow a way of bending time, an exciting possibility suggested by Albert Einstein when he discovered special relativity over one...

Expert timing and spacing is what separates a slide show from a truly amazing animation. TED-Ed demonstrates, by manipulating various bouncing balls, how the smallest adjustments from frame to frame can make all the difference.

In this episode we explain what quantum tunneling is and how it works!

Conventional wisdom might have you believe that human beings only really start showing empathy after a few years of learning social norms and morals. However, some research suggests that this kind of compulsion to do good might be...

We'd like to know why you're staring at yourself in a spoon in the first place. But we can at least answer the question of why you look upside-down when you do.

In this video Paul Andersen explains how Newton's Third Law applies to all objects. When an object applies a force to another object (Action) and equal and opposite force (Reaction) is applied to the original object. Several scenarios...

In this video Paul Andersen explains how conservative forces can be used to store potential energy in an object or a system. The work done is equal to the amount of potential energy in the object. The following conservative forces are...

Today is a big day! Jessi and Squeaks are going to make slime, and they're going to show you how to make it, too! Plus, they'll tell you all about the gooey science that makes slime so weird and fun!

Before they can walk or talk, infants start to do all sorts of cognitive feats that seem awfully smart for a baby.

Continuing in our journey of understanding motion, direction, and velocity... today, Shini introduces the ideas of Vectors and Scalars so we can better understand how to figure out motion in 2 Dimensions. But what does that have to do...

How do we design the most efficient machines and processes? Today we’ll try to figure that out as we discuss heat & work, reversibility & irreversibility, and how to use efficiency to measure a system.

In this episode of Crash Course Physics, Shini is very excited to start talking about Fluids. You see, she's a Fluid Dynamicist and Mechanical Engineer, so fluids are really important to her. Actually they're really important to anyone...

As we get ready to watch that big football game that my lawyers tell me I'm not allowed to say the name of, let's celebrate a champion of the bird world: Stealthy and silent owls! Learn how owls fly so silently, how they see in the dark,...

What is it about unfairness? Whether it's not being invited to a friend's wedding or getting penalized for bad luck or an honest mistake, unfairness often makes us so upset that we can't think straight. And it's not just a personal issue...

In this video Paul Andersen explains how the activation energy is a measure of the amount of energy required for a chemical reaction to occur. Due to the collision theory the activation energy requires proper energy and orientation of...

In our series finale, we're going to take a look at some of the times we've used statistics to gaze into our crystal ball, and actually got it right! We'll talk about how stores know what we want to buy (which can sometimes be a good...

An unbelievable play on an American football field is the perfect backdrop for understanding crucial physics concepts. Michelle Buchanan goes play-by-play on the vectors, the scalars, and the glory of a downright scientific touchdown.