Hank tells us about the awesomeness of the periodic table and the genius of the man who invented it.

If you live in the United States, you might have recently gotten a credit card with a microchip on it. But what does this chip do that makes it any different than the magnetic strip on the back of the card?

Moser's circle problem. What is this pattern: 1, 2, 4, 8, 16, 31,...

Have you ever looked really closely at your fingertips and noticed that they're covered in little bumps and ridges? Those are your fingerprints, a unique part of your body that helps make you... you!

Jessi and Squeaks are back from their research trip and ready to keep learning with all of you! And on their trip back to The Fort, Jessi thought up a really interesting questions: how do animals find their way home?

The way light behaves can seem very counter intuitive, and many physicists would agree with that, but once you figure out light waves it all starts to make more sense! In this episode of Crash Course Physics, Shini shows us how we know...

Today we’re going to talk about why many predictions fail - specifically we’ll take a look at the 2008 financial crisis, the 2016 U.S. presidential election, and earthquake prediction in general. From inaccurate or just too little data...

Learn about different types of weather and how to keep track of your weather observations!

Hank introduces us to the most beautiful numbers in nature - the Fibonacci sequence.

On a cold day, sometimes people will say "I'm freezing!," even though they aren't actually frozen like ice. But there is a very special animal that can say "I'm freezing" and mean it: wood frogs! Join Jessi and Squeaks to...

We've talked about constellations; groups of stars in the night sky that we assign names to. But there are a certain group of special constellations called The Zodiac that Sabrina is going to chat about. Gemini, Sagittarius, Scorpio?...

Today on Crash Course Literature, John Green teaches you about The Yellow Wallpaper, by Charlotte Perkins Gilman. The Yellow Wallpaper tells the story of a woman who is a prisoner in her own home, in the name of caring for her mental...

Settle in for a smörgåsbord of brain facts.

How do fingerprints form? Even though many people think it's random, a lot of it has to do with your genes!

How the right question about Newton's method results in a Mandelbrot set.

Neuroscientist uri Hasson researches the basis of human communication, and experiments from his lab reveal that even across different languages, our brains show similar activity, or become "aligned," when we hear the same idea or story....

Tropical rainforests are known for being super biologically diverse _ they're full of different species, from colorful birds and insects to plants and fungi. We haven't even come close to cataloguing everything that's there.

Once every century, the world's greatest spiders gather to compete in a series of grueling games. The winner will become the next arachnomonarch, able to command all the world's spiders to their will. That day is today, and for the first...

Never underestimate the power of an intriguing start. When analyzing the literary greats like Charles Dickens and Kurt Vonnegut, be inspired by their craft and learn how to write a tantalizing introduction and strong thesis for your...

So, you know about stars. But what if those stars formed a super group like The Avengers? Well, then you have a Constellation! In this episode of Crash Course Kids, Sabrina chats about stars, constellations, and how humans have used...

Only 4 steps stand between you and the secrets hidden behind RSA cryptography. Find out how to crack the world's most commonly used form of encryption.

So, what is the Ecliptic? Well, it has to do with the Zodiac constellations and our sun and how they move in relation to one another. It's kind of cool! In this episode, Sabrina chats about this imaginary line called the Ecliptic and its...

In this Grade 7 math video, students will learn how to extend a number pattern using a given rule with repeated division to find the sixth term. This step-by-step video models how to apply the rule correctly and use long division to...

In this video students will observe and measure an object in motion to show how patterns can be used to predict future motions. As a result of a hands-on experiment they will observe and explain patterns of motion. This program...