This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve...

Is there extraterrestrial life in our solar system? Or are we alone? Take a journey to the ocean worlds on Jupiter and Saturn to investigate the possibility. -- Deep in our solar system, a new era of exploration is unfolding. Beneath...

How the heck do we map out a planet without oceans? NASA had to figure that out when we sent the Mariner 9 probe to Mars. There's some tricky, yet fascinating science behind all of it! In this episode of Crash Course Physics, Shini talks...

Is Glass a Liquid?

In this video Paul Andersen explains how fossil fuels are formed when organic material is heating and squeezed in an anaerobic environment. Formation, extraction, advantages, and disadvantages are discussed for coal, petroleum and...

In this episode Hank explains how snow is made using science.

Astronomers have announced the Juno space probe’s first findings from Jupiter!

In this video Paul Andersen explains how intermolecular forces differ from intramolecular forces. He then explains how differences in these forces account for different properties in solid, liquids and gases. Some of these properties...

Jessi and Squeaks just learned about terrariums, and now they want to make one for themselves! Join them to learn all about these tiny gardens in a bottle and how you can make one of your own!

Saturn is the crown jewel of the solar system, beautiful and fascinating. It is a gas giant, and has a broad set of rings made of ice particles. Moons create gaps in the rings via their gravity. Saturn has dozens of moons, including...

Or why we live on an onion made of magma

Can you believe that you can blow up a balloon without actually blowing your own air into it!? Follow along with this super neat experiment and find out how!

Paul Andersen explains the process of photosynthesis by which plants and algae can convert carbon dioxide into useable sugar. He begins with a brief description of the chloroplast. He describes the major pigments in a plant (like...

Mars might be full of salty liquid water! Plus, a guide to the upcoming Lyrids meteor shower.

There is more than one way to measure the same thing! Jessi and her friend The Giant Squidstravaganza (Squid for short) explore the differences between the Metric System and the Imperial System.

Get your gasmasks ready because we're taking a trip to Titan! Reid Reimers tells us all about the mysterious moon.

Humans can go inside or put on clothes, but trees spend winter naked in the cold. Why don't they all die?

If you've ever gone outside really early on a cold day in fall, you might have seen a thin layer of sparkly ice crystals covering everything! That ice is called frost, and it can only form if the weather is exactly right!

Hey... what's matter? No no no, not what's THE matter. What's MATTER? In this episode of Crash Course Kids, Sabrina talks about what matter is and the three states of matter: Solid, Liquid, and Gas. She also does a quick experiment that...

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The power of density!

From a solid to a gas! Dry ice!

Colorful, engaging footage emphasizes the fact that phase changes occur all around us. Freezing, melting, vaporization, and condensation are all explained through crisp imagery and colorful animations. This video correlates to the Next...

This captivating program uses the example of water to illustrate the three different phases in which it exists as a solid, liquid, or gas. Special attention is given to how particles in liquids and gases act thus causing them to behave...