But Why

Jane Lindholm / VPR

How do butterflies fly? Why are butterflies called butterflies? How do airplanes fly? If gravity pulls everything down, how do planes and rockets get up in the air? Why do planes have engines and how do they make them? We're visiting ECHO, the Leahy Center for Lake Champlain and the Smithsonian National Air and Space Museum for answers.

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

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Why are there so many plants? How are seeds made? How does germination work? How can plants grow so big if they start from such a small seed? Why are flowers different colors? Why are plants and trees green? Where does dirt come from? In this episode of But Why, we're talking about plants with garden consultant Charlie Nardozzi.

NASA/JPL-Caltech

The discovery of seven new planets that could contain life has kids and adults pretty excited. We can't get to these planets yet but we do have tools to explore planets closer to home.

In this episode, St. Michael's College astronomy professor John O'Meara answers how the Mars rover is driven from back here on earth?

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Why are yawns contagious? Why do we hiccup? How do teeth get loose? Why do your ears hurt when you drive up over the mountains? Why do we get dizzy when we spin? Why do people slip? Why do people faint? Why do we have saliva and mucus? Why do people cry when they get hurt? How do voice boxes work? Why does your voice sound weird when it's recorded? Dr. Lori Racha has more answers to your body questions.

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Why do your fingers and toes turn wrinkly in the tub? Why are people ticklish? How do you get freckles? Why do some people have birthmarks? How do our hands feel things? Are humans animals? Why don't humans have tails? Why do we need food and water to survive? Why do our nose and ears keep growing? How do bones connect together? We're talking about our weird and wonderful bodies with Dr. Lori Racha, a pediatrician at the University of Vermont.

Jane Lindholm / VPR

How do popcorn kernels pop? How do salmon know where to return to spawn? How do rabbits change colors? Why does television fry your brain? How do zippers zip stuff? Who was the fastest runner in the world? In this episode, we'll tackle all these questions!

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Why is all of the world split up into countries, states, cities and counties and more? Why can't we all just live as one big group? Which country has the least amount of people? We're talking about countries and borders with author Juan Enriquez. Also in this episode: why don't school buses have seatbelts?

Courtesy, Taza Chocolate

How is chocolate made? Why can't we eat chocolate all the time? Why does chocolate melt? Why can't dogs eat chocolate? In this episode, we travel to Taza Chocolate in Somerville, Massachusetts to get some answers. Plus, we visit a coffee roaster in Maine to learn about this parent fuel that so many kids find gross!

Jane Lindholm / VPR

We're getting answers to all of your weather questions! Where does snow come from? Why do clouds stay up in the sky? How hot is lightning? What are thunderstorms? How is wind made? Those questions and more are answered by meteorologist Mark Breen, author of The Kids' Book of Weather Forecasting.

Library of Congress

On this special episode, we’re going to listen to a story about how turkeys used to get from farms in Vermont to markets and dinner tables far away in Boston, a distance of a couple hundred miles. This was before refrigerated trucks. So how do you think they did it?

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Why do we like to eat certain foods? Why do some people like to eat spicy food and some people don't like to eat vegetables? Why does pineapple hurt your mouth when you eat too much of it? Why do we taste things and how? Why do different foods taste different? Do animals have the same taste buds as people?

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Are ghosts real? Why do some cultures believe in fairies and gnomes and some don't? We'll learn about how beliefs in ghosts vary in different parts of the world with Justin McDaniel of University of Pennsylvania. Then we're off to Iceland to learn about magical creatures with Terry Gunnell.

Jane Lindholm / VPR

How do birds fly? Why do they flock? How do they not get shocked when they sit on telephone wires? The Bird Diva has our answers to all of your questions about our feathered friends. And why do chickens lay different colored eggs? We visit the hen house at Shelburne Farms to find out.

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Who invented the president? Which country had the first president? We answer presidential questions historical in nature with author Kenneth C. Davis. Also in the episode: why do leaves change color in the fall?

Jane Lindholm / VPR

We're heading to the coast of Maine to learn a little bit about why the sea is salty, how mussels get their shells and how model ships get in those glass bottles.

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7-year-old Kala wants to know why we say soccer in the United States, when the rest of the world calls the game "football." In this episode we hear from people who make their living in the game, professional players, coaches and commentators.

Mehgan Murphy / Smithsonian

How long does it take for baby animals to grow up? In this episode, we're learning about cheetahs and horses with two questions from siblings in Australia.

Jane Lindholm / VPR

This episode is all about bugs! We've gotten a lot of questions from you about insects and other critters. So we're tackling them with the help of Jessica Honaker and Kristie Reddick, otherwise known as the Bug Chicks.

courtesy, Michal Cervany

It's all about bikes in this episode of But Why? Why bicycles can stay up when you're riding them, but fall over when stopped. Olympian Lea Davison tells how to get started when riding, and we learn how a bike chain moves a wheel.

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