In 1910, 90% of Black Americans lived in the South. By 1940, around 1.5 million Black Americans had left their homes, and 77% lived in the South. By 1970, 52% of Black Americans remained in the South. People moved away for many reasons,...

So we've been talking about civil rights for the last few episodes now, and we're finally going to wrap this discussion up with the rather controversial topic of affirmative action. We'll explain what exactly affirmative action is, who...

You’ve probably been there before, working hard on your job until your brain gets all mushy and fuzzy. But small breaks, like watching this video, can help you in multiple ways! Just, don’t fall into any cat video rabbit holes.

After taking you on a journey through geologic time, we've arrived at the Cenozoic Era. Most of the mammals and birds that you can think of appeared during this era but perhaps more importantly, the Cenozoic marks the rise of organisms...

Join Jessi and Squeaks as they prepare a special meal for friends. You’ll learn some fun food science facts, like the difference between fruits and veggies and how your tongue works so you can taste food!

Trace the rise and fall of the Mongol Empire which, under the leadership of Genghis Khan, became the largest contiguous land empire in history. -- It was the largest contiguous land empire in history— stretching from Korea to Ukraine,...

Despite what you might've seen on some wilderness-survival show, there's increasing evidence that your pee isn't sterile. So don't do anything crazy with it. Sci Show explains!

Media isn’t just movies and newspapers and TV shows, it’s also a part of society that involves a lot of money. And all that money has implications for the media that gets created. Media is created by people -- a range of people, making a...

If you've heard it once, you've heard it a thousand times: Parents blaming their kids' active behavior on sugar. But is it true? Hank gives you sweet-and-lowdown on the extent to which sugar can and can't affect behavior, in kids and...

Learn about our 5 main food groups with Jessi and Squeaks, then see if you can name them all!

Reptiles emerged from the Paleozoic as humble creatures, but in time, they grew to become some of the largest forms of life ever to stomp, swim, and soar across the planet. This Age of Reptiles was a spectacular prehistoric epic, and it...

By analyzing raw data on violent incidents in the Iraq war and others, Sean Gourley and his team claim to have found a surprisingly strong mathematical relationship linking the fatality and frequency of attacks.

Today we're going to talk about p-hacking (also called data dredging or data fishing). P-hacking is when data is analyzed to find patterns that produce statistically significant results, even if there really isn't an underlying effect,...

The advice "Just Say No" may not always work, but knowing the psychology behind peer pressure can help you maintain control when you’re experiencing it.

Groups of animals have some really interesting names! Learn about them with Jessi and Squeaks!

So how do we apply the scientific method to psychological research? Lots of ways, but today Hank talks about case studies, naturalistic observation, surveys and interviews, and experimentation. Also he covers different kinds of...

Social class in America is... hard to talk about. As Sociology, the difficulty lies in pinning down what we mean by "Social Class." In this episode of Crash Course Sociology, Nicole chats to us about how Sociologists figure this out so...

For a long time, people have seen pictures among the stars -- just like connect the dots! Learn all about constellations, including someone of the easiest ones to spot, and what some people thought they looked like.

The planets in our solar system have a very specific order. But have you wondered why they have the order they do?

Did you know that of all of the rocks in the world, there are only 3 main kinds? What are they? And how can you tell them apart? Jessi and Squeaks show you how you can become a rock detective!

A video entitled “Life Cycle of a Whale” explores the unique life cycle of a whale.

There have been a lot of stories about using behavioral economics to change wide array of human behaviors. Studies have looked at adherence to treatments, weight control, and lots of other areas, and have found that trying to change...

In this video Professor Justin Champion introduces the diggers, levellers and ranters of the English Civil War.

Omer Bartov is a professor of history at Brown University, where he holds the chair in Holocaust and Genocide Studies. A historian for more than four decades, he began his career by challenging the postwar German myth of a “clean”...