But Why: A Podcast for Curious Kids

How Do Piano Keys Make Sound?

<p>Did you know pianos have strings and hammers? We're learning all about instruments and how they use strings to make noises.</p>

But Why is a show led by kids. They ask the questions and we find the answers. It’s a big interesting world out there. On But Why, we tackle topics large and small, about nature, words, even the end of the world. Know a kid with a question? Record it with a smartphone. Be sure to include your kid's first name, age, and town and send the recording to questions@butwhykids.org!