Category: Videos

Why Can’t Animals Talk?

No doubt about it: animals can communicate. Sometimes it’s among themselves, such as when a meerkat sentry calls out to warn the community members of approaching danger. Some animals communicate with humans. How does...

Blood Isn’t Really Blue

Sing along, everyone: A, B, AB, O… You may have noticed that this is not the typical alphabet song. It’s the blood alphabet, but it’s not as creepy as it sounds. Blood comes in...

Who Invented Science?

What do you think of when you hear the word “science?” Lab coats? Microscopes? Einstein? Dissection? Or just the class right before lunch?  Science may be these, but it’s much, much more. It’s not...

What Really Killed the Dinosaurs?

Scientists often have a pretty good idea of what’s going on, but views can change over time as we learn more about the natural world. Aristotle was hot stuff in ancient Greece and for...

Why Do We Have Hair?

Hats off to hair (pun intended), which keeps you warm and protects your skin. But what’s the science behind hair? What parts does it have? How does it grow? What is its favorite color?...

Why Do Things Float?

In the balloon family, helium balloons are the party animals. They don’t sink to the floor and just sit there (yes, we’re looking at you, air-filled balloons!). They float, move with air currents, and...

What Makes Our Eyes Different Colors?

Ah, 1907. In many ways, it was a simpler time. It cost only a nickel to go to the movies, and people thought that a single gene determined eye color. That was the year...

How Do We Think?

Ever try doing a jigsaw puzzle without knowing what the final product should look like? You’d do a lot of guessing, trying to fit pieces together without much guidance. You might even use your memory of how you did puzzles in the past to see if that helps at all.

Gravity Part 3: How Can We Be Sure?

Are you sure everything pulls on everything else? Prove Your World tries another variation of the Cavendish experiment just to be certain. Plus Popper has his eye on Katy Perry.