Why do earthquakes happen? How do the tectonic plates move underground? How do we stay safe during an earthquake? Why are continents so far apart? Why do buildings sometimes catch fire after earthquakes? Why are there tsunamis after earthquakes? For this week's show we headed to California to visit Jennifer Strauss at the Berkeley Seismology Lab and we hear from Celeste Labedz at the California Institute of Technology. 

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Why Do Earthquakes Happen?

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!

Kids & Family

Why do lizards have scales? Why are reptiles cold-blooded? Why do lizards have long tongues? How do lizards grow their tails back? Are crocodiles dinosaurs? What’s the difference between an alligator and a crocodile? Why do crocodile eyes look like they have mirrors in the back? How do crocodiles chomp? Why do crocodile teeth stay sharp? Why are crocodiles green? Why do crocodiles swim? Answers to all of your crocodile and alligator questions with Venetia Briggs-Gonzalez, one of the researchers known as the Croc Docs at the University of Florida.

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How do crocodiles chomp?

Why do people dance? Where did ballet come from? How do you make pointe shoes for ballet? How does practice make you better at things? But Why visited Dance Theatre of Harlem to get answers to these questions with company artists Derek Brockington and Lindsey Donnell.

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Why do ballerinas wear ballet shoes?

A solar eclipse is coming to North America on April 8, 2024. The moon will line up perfectly between the Earth and the sun, blocking out the sun’s light and casting a shadow that will pass over parts of Mexico, the United States and Canada. People in the path of totality will experience a few minutes of darkness during the day as the moon perfectly covers the sun. Those not in the path of totality in those countries will still experience a partial solar eclipse. In this episode, we’re answering questions about the eclipse and talking about how to keep your eyes safe if you’re watching it! We speak with Bridgewater State University solar physicist Martina Arndt, Fairbanks Museum planetarium director Mark Breen and Thomas A. Hockey, author of America’s First Eclipse Chasers.


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What is a solar eclipse?

Why are there Burmese pythons and chameleons in the Florida Everglades? We might not know how those animals arrived but they are causing damage to the natural ecosystem. An invasive species out competes native plants and animals in an ecosystem. So how does this happen? But Why travels to the Everglades to learn more about how and why species end up in places they shouldn’t. Plus, why are we sometimes told to kill invasive insects like the spotted lanternfly?

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How do invasive species take over?

How is snow made and what’s it made out of?  Why is it white and sparkly?  Why do snowflakes look different? Can snowstorms have thunder? Why do some places, like mountains, get more snow than others? Answers to all of your questions about snow, with Seth Linden, who works for the National Center for Atmospheric Research in Boulder, Colorado. Plus we hear what it’s like to live at the top of Mount Washington, famous for its extreme weather, from Alexandra Branton, a meteorologist who works at the observatory at the top of the mountain, even during the frigid winter.

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Why Do Earthquakes Happen?

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