Funny Questions Kids Ask

How Sword Swallowing Works

Sword swallowing is an extremely dangerous trick that doesn't involve illusions. How can it be real? We'll show you -- with explanations and diagrams of the interactions between swords and the upper GI tract. But don't try this at home!

Why do bridges ice before the rest of the highway?

I've noticed signs on the highway that warn "Bridge Ices Before Road." What causes bridges to ice before the rest of the highway?

5 Tips to Finally Achieve Your Fitness Goals

Don't quit! You can accomplish your workout resolutions by taking some simple steps psychologists recommend.

How 'Schoolhouse Rock!' Works

"Schoolhouse Rock" was never just a cartoon. It taught kids of the '70s and '80s about everything from American history and multiplication to grammar and science, without them really knowing it.

What if I ate the silica packets marked "do not eat"?

Silica packets most likely contain silica gel or some other desiccant -- something that absorbs (collects) and holds water vapor. What would happen if you put that gel in your mouth?

About Face: The U.S. Currency Portrait Quiz

Most bank notes and coins made in the U.S. feature famous people from American history. But we often use these bills without registering whose faces are actually on the notes. Can you guess without opening your wallet?