Tumble Science Podcast for Kids

The Hugging Robot

What makes a good hug? That’s what Ryder wants to know. Enter HuggieBot - a robot that helped discover the 11 “ingredients” of a meaningful embrace. We’ll learn why HuggieBot’s creator, Dr. Alexis Blo...

2026-10-09

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Mailbag: What Happens When Galaxies Crash?

In this mailbag episode, astronomer Karen Masters joins Marshall and Lindsay to answer a listener's question: what happens when Andromeda crashes into the Milky Way? Plus, we're launching a brand-new ...

2026-10-02

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Why Does Earth Have a Magnetic Field?

How did Earth get its magnetic field? And why does it move around? Our listeners have questions about one of Earth’s most mysterious forces. To find out, we go on an archeological expedition in the Mi...

2026-09-25

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Mailbag: Do Space Wormholes Exist?

In this mailbag episode, Marshall and Lindsay tackle two listener questions — whether space wormholes are real, and what a fly wing and a carrot could possibly have in common under a microscope. Plus,...

2026-09-18

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Why Do T. Rexes Have Small Arms?

Why did T. Rex have such tiny arms? That’s what our listener Nora wants to know. We’re going to find out why the biggest, most powerful predator to ever walk the Earth did it with a teeny tiny set of ...

2026-09-11

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Mailbag: Why Does the Left Brain Control the Right Side of Your Body? Are Dinosaurs Reptiles or Birds?

In this final mailbag episode of Summer 2026, Marshall and Lindsay address two listener questions, and learn about a surprising twist of evolution. Plus, listener reviews and comments! To get an invi...

2026-09-04

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Tumble Science Podcast for Kids Season 12 Starts September 11!

Why do T. Rexes have tiny arms? Can dogs actually talk? Do we remember dreams or nightmares more? Season 12 of Tumble Science Podcast for Kids drops September 11th — and we're bringing kids' wildest ...

2026-08-29

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The Science of Your Favorite Foods [ENCORE]

This is a rebroadcast of a favorite episode of Tumble from season 6. What’s your favorite food? Why does it taste so good? It turns out, what we think is tasty isn’t just a matter of opinion. It’s s...

2026-08-21

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Mailbag: How Do Stem Cells Decide What to Become? What's Morse Code?

In this special summer mailbag episode, Marshall and Lindsay help answer three kid questions: How do stem cells decide what to become? How do chameleons change color? and... What is Morse code? ...

2026-08-07

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The Secret to Cheetah's Super Speed [Encore]

How do cheetahs get their super speed? We talk to a cheetah scientist to find out why a spotted cat is the fastest animal on Earth. Cheetahs are literally built for speed! Anne Hilborn spent months sc...

2026-07-24

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The Plastic Pollution Patrol [ENCORE]

This is a rebroadcast of one of our favorite episodes from last season, and one that is particularly timely for the summer! What if you found out that there was a tiny, nearly invisible type of plas...

2026-07-10

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Mailbag: What would happen if the Moon disappeared? How big is the universe, really? Are there atoms in a black hole?

What would happen if the Moon disappeared? How big is the universe, really? And what happens to atoms inside a black hole? Marshall and Lindsay get the answers to some cosmic questions in this special...

2026-06-26

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How Were Dinosaur Tracks Made?

This is a rebroadcast of one of our favorite episodes from season 10! Ever wondered how dinosaurs left their footprints behind millions of years ago? We embark on a prehistoric adventure with renown...

2026-06-12

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Mailbag: Could a Peacock and Platypus Be Friends? Why does the ground keep spinning? Do magnets work in space?

You asked, we answered! In this mailbag episode, we're tackling three big kid questions: why does the ground keep spinning after you stop? Do magnets work in space? And could a peacock and a platypus ...

2026-05-29

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Pluto and the Planetary Pandemonium - Encore

This is a rebroadcast of one of our favorite episodes from the past! It’s a scientific controversy of planetary proportions! Is Pluto a planet, or not? You decide, after we present two sides of an ep...

2026-05-15

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Who Works Harder: Ants or Bees?

Both ants and bees work hard. So which one works harder? That’s what our listener Hadi wants to know! So we’re pitting insect against insect in a battle of industriousness. Ants or bees: Who will win?...

2026-05-01

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Mailbag: Are Animals Ticklish? + New Song!

A special “tickle attack” Mailbag edition of Tumble! We’re tackling your questions about whether animals can be tickled, and why we laugh when we’re tickled. David Leavens, a professor of psychology, ...

2026-04-17

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Do Trees Think?

Do trees think? That’s what our listener Alden wants to know. He has an idea that scientists might study mushroom roots to find out if trees are sending messages. Is that true? And if so, what do tree...

2026-04-03

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What's Dark Matter?

What is dark matter? Why do scientists think it exists? How are they searching for it, and why are they doing it in an underground lab?! Join us on the search for dark matter with Alvaro Chavarria, a ...

2026-03-20

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Who Invented the Peanut Butter & Jelly Sandwich? (with The Past and the Curious)

Who invented the peanut butter and jelly sandwich? And how did it become one of the most famous lunches in America? In this episode, a question from listener Leila sends us on a trip through history ...

2026-03-06

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Tumble Science Podcast for Kids

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