What are discs?

A disc is like a flat, round toy that you can spin or slide around on a table.

Imagine you have a plate from your dinner, that’s a disc! It's round, it's flat, and you can move it easily. Now think about a coin in your pocket, that’s also a disc, just smaller and harder.

• Shape: A disc is always round, like the moon or a pizza.
• Flatness: It’s thin, so you can stack them on top of each other like pancakes.
• Movability: You can slide it across a table or even roll it if you give it a little push.

• A CD, the thing that plays music when you put it in your computer.
• A frisbee, something you throw and catch with friends.
• A wheel on a toy car, it’s round, flat, and spins around!

So next time you see something round and flat, remember: that might just be a disc in disguise!