Tumble Science Podcast for Kids

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 Middle East, with pioneering paleomagnetist Lisa Tauxe. Lisa has spent decades “hunting” the magnetic field through time, to understand what ancient artifacts can tell us about how the magnetic field has changed. Did you know, magnetic north doesn’t stay in one place – and sometimes it flips? If you feel yourself pulled into this mystery, hit play on this episode!  Join on Patreon to help us continue to make Tumble: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Submit a science question: https://www.sciencepodcastforkids.com/contact Bring Lindsay & Marshall to your school or event: https://www.sciencepodcastforkids.com/school-visits

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, listener reviews and comments from China! To get an invite to the next Tumble meetup, as well as receive birthday shout outs and ad free versions of the show, go to patreon.com/tumblepodcast and support us! For Tumble t-shirts, visit our store on Dashery: tumblepodcast.dashery.com And don't forget to keep checking our blog on our website, sciencepodcastforkids.com for NGSS alignment, activities, and more! Submit your own question and be on our show here!

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 arms. Scientists have been coming up with answers for this question for decades — but science is never settled. Paleontologist Elizabeth Steell has walked into the debate with a stunning theory involving giant heads, evolutionary tradeoffs, and some serious math. Will it convince you? Listen and find out!  Join on Patreon to help us continue to make Tumble and be featured on future episodes: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Submit a science question: https://www.sciencepodcastforkids.com/contact

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 invite to the next Tumble meetup, as well as receive birthday shout outs and ad free versions of the show, go to patreon.com/tumblepodcast and support us! For Tumble t-shirts, visit our store on Dashery: tumblepodcast.dashery.com And don't forget to keep checking our blog on our website, sciencepodcastforkids.com for NGSS alignment, activities, and more! Submit your own question and be on our show here!

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 science questions to REAL scientists for the REAL stories behind discovery (plus the jokes and sound design you know we can't resist). Almost 200 episodes in, and we're just getting started. 🚀 🎧 Want it early + ad-free? Pledge $1+ at patreon.com/tumblepodcast 🌐 More at sciencepodcastforkids.com Follow/subscribe now so you don't miss episode 1

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 science! Ecologist and science writer Rob Dunn takes us on a journey back in time, before kitchens, cooking, and even farming! We find out how our ancestors’ tastes shaped our own cravings - and how our experiences lead us to pick our favorites. Curious to learn more about the science of taste? Listen to our bonus interview episode with Rob Dunn on Patreon! Available for Patrons who support Tumble at the $1/ level or higher! Pledge at patreon.com/tumblepodcast. We have free resources to learn more about taste and our ancient ancestors on the blog on our website, sciencepodcastforkids.com.

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? This special episode features answers from Jessica Whited, Michel Milinkovich, and Mick Sullivan, from The Past and the Curious! As well as a roundup of listener reviews, and more! For more information about Tumble, go visit our website at sciencepodcastforkids.com. To send us a question and get it answered on our show, go to https://tumble.science/Question. Also support us on Patreon! patreon.com/tumblepodcast

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 scoping out cheetahs on the hunt in the grasslands of the Serengeti. We’ll discover how cheetahs’ incredible speed is linked to their survival - and what they do when being fast isn’t enough. On our special bonus interview episode - available to our Patreon supporters - Anne shares the amazing story of how being photographed while dropping cheetah poop on herself became both her most embarrassing and her proudest moment. Photos on the blog! Pledge at patreon.com/tumblepodcast. Only $1/month gets you double the Tumble, and $5/month comes with a shoutout on the show, a birthday greeting, and opportunities to be on the show! Want to learn more about cheetah science, and reputable conservation organizations? Check out our blog at ⁠www.sciencepodcastforkids.com

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 plastic pollution that’s found nearly everywhere… but you’d never heard of it! That’s what happened to environmental scientist Jace Tunnell several years ago, and he’s been on a great nurdle hunt ever since! This episode on fighting plastic waste comes with a special bonus: the opportunity to enroll in a “Nurdle Patrol” and lead the Nurdle search in your community! Join the Nurdle Patrol Special Agent Training Course at ⁠sciencepodcastforkids.com/nurdles⁠ If you want to support Tumble on Patreon, just go to patreon.com/tumblepodcast. Ad-free early access to episodes is just $1/month, and for just $5/month you can get a birthday shout out on our feed! T-shirts and other merch (including merch specific to this episode) are available at the Tumble merch store, at tumblepodcast.dashery.com.

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 mailbag episode! If you want to have your comment or review read on our show, leave one! Write a review on ⁠⁠Apple Podcasts⁠⁠ or comment on ⁠⁠Spotify⁠⁠.  Join on Patreon to help us continue to make Tumble and be featured on future episodes, and help us decide on Season 12 topics: ⁠⁠patreon.com/tumblepodcast⁠⁠ Shop official Tumble merch: ⁠⁠https://tumblepodcast.dashery.com/⁠⁠ Submit a science question: ⁠⁠https://www.sciencepodcastforkids.com/contact Watch the Joke-ha-thon here! Other Tumble episodes mentioned in this mailbag: "What Would Happen If There Was No Moon?" (in Spanish). "The Quest for the Edge of the Universe with Katie Mack" "How Big is the Universe?" Cataloging the Universe - Audio Course

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 renowned paleontologist Paul Olsen! Discover the secrets behind dinosaur tracks and how these ancient prints can tell us incredible stories about the lives of dinosaurs. From the science of fossilization to what these footprints reveal about dinosaur behavior and habitats, Paul Olsen will guide us through the fascinating world of these mysteries left in stone - and share how he discovered thousands of dino tracks when he was just a kid. Join us on a Dino Map Adventure at ⁠nepm.org/dinomap⁠! We’ve created a free audio tour to explore the science and history of dinosaur tracks in the Pioneer Valley of Massachusetts. Lindsay and Marshall will guide you through the place where dinosaur footprints were first discovered - and put you on the path to becoming dino track explorers! Dinosaur Adventures in the Pioneer Valley are supported by The Bement School, The Center School, and HCS Headstart. If you like this episode, consider supporting Tumble on Patreon by going to patreon.com/tumblepodcast. Get ad-free episodes for just $1 a month!

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 ever be BFFs? We get answers from real experts, as well as reading your reviews and comments! Also, the Joke-ha-thon is coming up on June 3rd! Go here to donate and pick your champion, and also win some amazing, amazing prizes for yourself and your school. If you want to have your comment or review read on our show, leave one! Write a review on ⁠Apple Podcasts⁠ or comment on ⁠Spotify⁠.  Join on Patreon to help us continue to make Tumble and be featured on future episodes, and help us decide on Season 12 topics: ⁠patreon.com/tumblepodcast⁠ Shop official Tumble merch: ⁠https://tumblepodcast.dashery.com/⁠ Submit a science question: ⁠https://www.sciencepodcastforkids.com/contact⁠

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 epic astronomy argument. Back in 2006, the International Astronomer’s Union voted on a definition of the word “planet” that excluded Pluto and other newly dubbed “dwarf planets” from planethood status. Astronomers - and everybody else - quickly chose sides. We dive deep into the debate and learn that Pluto’s not the only Space Object Formerly Known As A Planet. Then we’ll ask you to weigh in with your opinion, and see if you can find “consensus” on what should be called a planet. Featuring planetary astronomer Kirby Runyon. We have a present for your birthday!! We’ll be doing birthday shoutouts for our Patreon members, beginning next month. Want to hear a message on the podcast just for your special day? Pledge at the $5 level at patreon.com/tumblepodcast. You’ll be helping us make the show, and we also have extra audio goodies for you. Hear more from our interviews with scientists! For this episode, Kirby Runyon expands on the different types of planets, and the fascinating features you can find on each one. There’s more about planets, on our website at sciencepodcastforkids.com. Don’t forget to subscribe to Tumble and tell your friends! See the new "Eight Planets in the Solar System" video here.

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?! Tune in as we attempt to crown the Hardest Working Insect! To help, we’ve recruited Dr. Sammy Ramsey, an entomologist, National Geographic Explorer, and host and producer of the Disney+ documentary, “Secrets of the Bees.” In a series of very competitive rounds, Dr. Sammy shares the research to stack up the habits of ants and bees. Plus, Tumble Patreon members weigh in with who THEY think should win! When you’re done listening, tell us if you agree with the results! Write a review on Apple Podcasts or comment on Spotify.  Join on Patreon to help us continue to make Tumble and be featured on future episodes, and help us decide on Season 12 topics: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Submit a science question: https://www.sciencepodcastforkids.com/contactAlso go donate to our Joke-ha-thon fundraiser by May 27th at 9 am ET to enter a drawing for AMAZING prizes! https://tumble.science/joke2026

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, helps us break down the not-so-silly science of tickling. Plus, a brand NEW SONG from Marshall based on a listener request!  Want to be on a future mailbag episode? With an adult, leave a review on Apple Podcasts, a comment on Spotify, or email us at tumblepodcast@gmail.com!  Join on Patreon to help us continue to make Tumble: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Listen to Tumble en Español: https://pod.link/1521514886Submit a science question: https://www.sciencepodcastforkids.com/contact

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 trees have to say?!We travel deep into the forest with a young soil scientist named Natalia Mondi from the Mother Tree Project, to find out how and why trees communicate through the ecosystem. Along the way, we’ll discover what trees are asking for, how their “forest buds” help them out, and how Natalia is using this knowledge to restore a forest in Canada, guided by the Kwiakah Nation. Join on Patreon to help us continue to make Tumble: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Listen to Tumble en Español: https://pod.link/1521514886 Submit a science question: https://www.sciencepodcastforkids.com/contact https://tumble.science/JokeContestant

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 physicist running a dark matter detector underneath a mountain in the French Alps. We’ll take you inside the lab to visit the detector, and find out why everything we think we know about dark matter… could be wrong.  For more, visit our website! Our question comes from Jeronimo, a Tumble en Español listener! To listen to Tumble en Español, use this link to subscribe wherever you get  your podcasts: https://pod.link/1521514886 Join on Patreon to help us continue to make Tumble: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Submit a science question: https://www.sciencepodcastforkids.com/contact . . . . . Shhh! This link is TOP SECRET: https://tumble.science/JokeContestant

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 to find out how peanut butter, jelly, and sliced bread came together to make the classic PB&J. Along the way, we learn about the first written recipe for the sandwich in 1901, how peanut butter went from a fancy food to a lunchbox staple, and why sliced bread changed everything. To help answer Leila’s question, we turned to our buddy Mick Sullivan, host of the history podcast The Past and the Curious. Mick loved the question so much that he made a whole episode about it—and today we’re sharing it with you. Join on Patreon to help us continue to make Tumble: ⁠patreon.com/tumblepodcast⁠ Shop official Tumble merch: ⁠https://tumblepodcast.dashery.com/⁠ Listen to Tumble en Español: ⁠https://pod.link/1521514886⁠ Submit a science question: https://www.sciencepodcastforkids.com/contact

Why do humans usually have five fingers on each hand? And what if one day, we could grow a new finger if we lost one? In this episode, a question from six-year-old listener Ayla sends us on a journey from tiny developing embryos to one of the most amazing animals on Earth: the axolotl.  We talk with Dr. Jessica Whited, a Harvard-based biologist who studies how axolotls regrow their limbs - and why humans can’t do the same… for now! Along the way, we discover how our hands develop before we’re born, why evolution settled on five fingers, and axolotls might show us the way to regrow our own limbs.  Plus: why axolotls have to live in separate tanks (hint: they’re a little too snack-happy). Join on Patreon to help us continue to make Tumble: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Listen to Tumble en Español: https://pod.link/1521514886 Submit a science question: https://www.sciencepodcastforkids.com/contact

In this episode, we talk to two scientists who study animal friendships, in different animals, and in different ways. We’ll hear from Karen Bales, who studies titi monkeys (AKA “fuzzy little guys”) and Annaliese Beery, who studies voles (AKA “the cutest rodents”). Get ready to discover how animal friends play and cuddle - and what they can teach us about our own friendships.  This episode was produced thanks to a generous grant from the Greater Good Science Center. Check out their website for all kinds of awesome quizzes, information, and more! Join on Patreon to help us continue to make Tumble: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Listen to Tumble en Español: https://pod.link/1521514886 Submit a science question: https://www.sciencepodcastforkids.com/contact

How did Earth get created? What did our planet begin as? Why does our world exist? What started our planet? These questions take us back billions of years to learn how Earth formed in the very beginning - and then, we’ll look to a group of mysterious asteroids that might reveal how Earth became the planet it is today.  With planetary scientist Bill Bottke, we’ll hear the incredible story of Earth’s earliest days in cinematic style. And get ready for a journey to Jupiter, where a NASA mission you probably haven’t heard of is heading, in hopes of revealing mysteries hidden in the Trojan asteroids. What could they reveal about why our planet came to host life? Listen to find out! Join on Patreon to help us continue to make Tumble: patreon.com/tumblepodcast Shop official Tumble merch: https://tumblepodcast.dashery.com/ Listen to Tumble en Español: https://pod.link/1521514886 Submit a science question: https://www.sciencepodcastforkids.com/contact

This is a rebroadcast of one of our favorite episodes from season 9! Do fungi breathe? That’s what listener Alice wants to know - and we’ll find out in our punniest episode yet! We visit the Fungarium - the largest and oldest collection of fungi in the world with curator Lee Davies, who describes himself as a “librarian” of mushrooms. We’ll explore how fungi live and die, and why there’s so many species left to discover. Watch out for the zombie fungi! And beware, Lindsay and Marshall don’t hold back on the “fun guy” puns! To support Tumble on Patreon, visit patreon.com/tumblepodcast. Our merch store is at tumblepodcast.dashery.com. Go here to get more details about Tumble's appearance at Lincoln Center this February 7th at 11 am! It's totally free to the public!

This is a re-broadcast of a favorite episode from 2019. We actually won our first AAAS Kavli Award for this episode, along with The Cave of the Underground Astronauts. Check it out! Why do seals have whiskers? Listener Karah’s question dives into the wonderful world of whisker science. Robyn Grant, a self-described “whisker biologist” shares her discoveries of how whiskers work, from training a friendly seal named Moe to making slow-mo movies of super speedy “whisking.” (You will find no cuter field of research… but if you do, tell us about it!) Listen to learn about humans’ hidden whisker muscles and find out to rank whiskers like the pros! Want to learn more about whisker science? We have more from our interview with Robyn on our Patreon podcast feed! Subscribe for $1/month at patreon.com/tumblepodcast. You can also tune in on the Castbox podcast app by tuning into our Premium Channel. Find more whiskery educational resources on our blog, at sciencepodcastforkids.com. If you want a t-shirt from our merch store, go check it out at tumblepodcast.dashery.com.

We’re wrapping up 2025 with a final Mailbag episode, featuring some of our longest-running Patrons! Did you know, when you sign up to support Tumble on Patreon, you’ll get a personalized message from Marshall? And if you’ve been supporting us for years, we might just call you up to chat! We’ll meet our mysterious patron, MiloSloth and his family, and learn why they love to support the show.  Plus, why is the English language so weird? Who made PB & J a combo? And do all cats hate getting wet? We have the answers. If you want to join Milo and support Tumble on Patreon, just go to patreon.com/tumblepodcast and pledge at whatever level you want! $1 or more gets you ad-free versions of the show, and $5 and up gets you a birthday shout out! Also don't forget about gift subscriptions, which make great last-minute holiday gifts! Want Tumble merch? Just go to tumblepodcast.dashery.com for t-shirts, mugs, hats, tote bags, and so much more.

How do people learn — and how can a video game help us find out? In this episode, we meet cognitive scientist Charley Wu, who built the ultimate science “mod” in Minecraft! Journey into a video game world of science to discover how and why Charley used one of the world’s most popular games to follow his curiosity about how humans learn. Featuring a “braintrust” of kid Minecraft experts to explain the game to Lindsay and Marshall, and a song inspired by The Minecraft Movie. You can learn more about Charlie, and find a transcript of this episode on the blog on our website, ⁠sciencepodcastforkids.com⁠.  Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at ⁠patreon.com/tumblepodcast⁠. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on ⁠sciencepodcastforkids.com⁠. You can also follow us on ⁠Instagram⁠ and subscribe to our ⁠YouTube.⁠ Try finding awesome shirts and other stuff on our merch store: tumblepodcast.dashery.com

Why do we have snot? Do animals get stuffy noses, too? We delve into the world of thick secretions with the help of Dani Rabiaotti, zoologist and author of “Believe it or Snot: The Definitive Field Guide to Earth’s Slimy Creatures.” You’ll find out why we make so much mucus, and meet the slimiest animals on the planet. Plus, you’ll discover why scientists study slime, even though it’s super gross. This is a rebroadcast of one of our favorite episodes from season 5, inspired by a question we recently got from our listener Harrison, who wondered why snot exists. Hopefully this answers the question for him! If you want to support Tumble with your holiday shopping, there are lots of ways to do it! Our merch store can be found at Tumblepodcast.dashery.com You can join our Patreon at patreon.com/tumblepodcast, or give a gift subscription at Patreon.com/tumblepodcast/gift. Or, click our affiliate link at bit.ly/tumblemel and get some awesome science kits while helping support the show!

What sounds do fish make? 🐟🎶 We know that cows say moo, and sheep say baa, but what do fish say? Come explore “Under the Sea” to discover the chorus of fish noises with help from fish ecologist Audrey Looby.  We’ll find out how fish can be sneaky, loud, and even “slimy, grumpy cuties” (Audrey’s words) who go boop boop - and what they can tell us about life underwater. 🌊 You can learn more about Audrey, and find a transcript of this episode on the blog on our website, sciencepodcastforkids.com.  Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at patreon.com/tumblepodcast. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on sciencepodcastforkids.com. You can also follow us on Instagram and subscribe to our YouTube.

Are ghosts real… or not? That’s what Lily wants to know. To find out, we talk to a real-life Ghostbuster and science historian Efram Sera-Shriar, who takes us on a journey back in time to when the world’s most famous scientists became ghost investigators: Sitting in on séances, inventing ghost-hunting devices, and exposing the tricks of “spirit photography.” Did you know, Thomas Edison made plans to create a phone to call ghosts? Learn all this and more when you join us on the trail of spooooky spirit science!  You can learn more about Efram, and find a transcript of this episode on the blog on our website, sciencepodcastforkids.com.  Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at patreon.com/tumblepodcast. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on sciencepodcastforkids.com. You can also follow us on Instagram and subscribe to our YouTube. And don't forget to visit our merch store!

Did dinosaurs sniff each other’s butts like dogs? That’s what listener Ernie wants to know! We’ll dig up the surprising dino discovery that leads to our answer with the help of  one of the world’s foremost animal butt experts, Dr. Diane Kelly!  You can learn more about Diane, and find a transcript of this episode on the blog on our website, sciencepodcastforkids.com.  Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at patreon.com/tumblepodcast. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on sciencepodcastforkids.com.  You can also follow us on Instagram and subscribe to our YouTube. Want to hear Aidee's Album "Nothing Rhymes With Orange?" Just click ⁠here⁠. (⁠https://platoon.lnk.to/nothing-rhymes-with-orange⁠)

This is our final Mailbag episode before all-new stories of science discovery arrive on Friday, October 17. Lindsay and Marshall share behind-the-scenes updates on what’s coming up in Season 11 — plus a special challenge to guess the topics of our first three episodes! Then, astrophysicist Dr. Hakeem Oluseyi (host of NOVA’s Particles of Thought and judge on Netflix’s Baking Impossible) joins us to tackle your big-universe questions: How does your body know you’re in a black hole? How do asteroids form? Why don’t we feel dizzy as Earth spins? And… what dessert would be best to eat in space? Plus we read your reviews, share how to support Tumble, and send in your own guesses and stories. Next time, we kick off a brand-new season of science adventures! LINKS! Patreon: https://www.patreon.com/c/tumblepodcast Yoto cards: https://us.yotoplay.com/products/animal-facts-critter-curiosities-gross-science-pack Audiobook: https://www.sciencepodcastforkids.com/single-post/tumble-media-announces-first-audiobook-collaboration-with-rbmedia Merch store: https://tumblepodcast.dashery.com/ Want to hear Aidee's Album "Nothing Rhymes With Orange?" Just click here. (https://platoon.lnk.to/nothing-rhymes-with-orange)

We have a big announcement: Tumble en Español is returning on September 25th! This is a rebroadcast of an episode of Tumble from last season. If you can't wait to hear the Spanish-language version, just go subscribe to Tumble en Español wherever you get your podcasts. Why are there so many axolotls in fishtanks, and so few in the wild? That’s what Maximiliano wants to know. You may have found axolotls in the lush caves of Minecraft, but in real life, they live in the lakes and canals of Xochimilco, near Mexico City. But the species is slowly disappearing from its native habitat. Axolotl veterinarian Horacio Mena takes us on a journey to Xochimilco to find out what scientists are doing to save these adorable amphibians. This material is based upon work supported by the National Science Foundation under Grant No. 2415575. Want to hear Aidee's Album "Nothing Rhymes With Orange?" Just click here. (https://platoon.lnk.to/nothing-rhymes-with-orange) Also don't forget to support Tumble on Patreon by going to patreon.com/tumblepodcast. Our t-shirts can be found at tumblepodcast.dashery.com. Also subscribe to Tumble en Español wherever you get your podcasts, or at https://pod.link/1521514886 You can also find more resources about axolotls on our blog at sciencepodcastforkids.com.

There’s so much happening in the world of Tumble, and we’re excited to share it all with you! Plus we answer questions about plants with the help of plant biologist Carina Baskett. Tumble Yoto Cards  A brand-new pack of 3 cards with Tumble episodes on our most popular themes - Animals, Bugs, and Gross Science - for the Yoto audio player!  Get it 20% off during Yoto’s Back to School sale on educational cards: https://us.yotoplay.com/products/animal-facts-critter-curiosities-gross-science-pack Tumble Science in the Field: Europe Our first ever audiobook featuring science adventure episodes in Europe! Find it where you get  your audiobooks:  Audible , Libro.fm , Hoopla , Audiobooks.com , and more!! Tumble Live Events! Cambridge Science Festival in Cambridge, MA - Sept 21 Princeton Public Library, Thursday September 25th The Andlinger Center for Energy and the Environment, Princeton University. Saturday September 27th Connecticut River Museum in Essex, CT - October 11  Lincoln Center, NYC - February 7, 2025 We can’t wait to see you there.

Is fire a liquid, a solid, or is it even matter at all? And what is the science of asking good questions? Lindsay and Marshall dig into the Tumble mailbag to answer listener questions with the help of Tumble's science advisors, and respond to reviews! Somehow, the whole "cats are evil" thing just refuses to die. We want to hear from you! Send us YOUR science questions, and let us know what you think of this mailbag episode! Here's how to do it: Email Lindsay & Marshall at tumblepodcast@gmail.com Upload a voice recording on our website sciencepodcastforkids.com Want to support Tumble on Patreon? Go to patreon.com/tumblepodcast, and for a limited time you can get 75% off the first month using the code BTS2025 at check out! You can also stream Science Songs vol. 1 here, or find the album on Bandcamp here. Our merch store is tumblepodcast.dashery.com, where you can find the bird jacket t-shirt!

This is a summer rebroadcast of an episode of Tumble from a few years ago. How big is the universe? And how do we know? It's a question that puzzled astronomers for centuries. They had no way to measure distance in space - until Henrietta Leavitt showed them how. Henrietta Leavitt was a "computer" in the 19th century, before there were computers, and she made an incredible discovery that would help change the way people thought about the universe - forever. Modern-day astronomer Karen Masters helps us tell her remarkable story. If you like this episode, you'll love our free audio course, "Cataloging the Universe" where you'll learn much more about how Henrietta Leavitt's discovery made a big difference in astronomy - plus, you'll become a skywatcher yourself! "Cataloging the Universe" is more than a podcast. It’s interactive! Each episode - or lesson - in the series contains activities to complete while you listen. Plus, you’ll get discussion questions, graphic organizers, and a star journal to keep your observations in. Check out the series and download all the resources at ⁠our website⁠! Hear more from Karen Masters in the bonus interview episode available to Patrons, when you pledge just $1 a month or more on our ⁠Patreon⁠ to support the show! We have free resources available on ⁠our blog⁠ to learn more about the episode. Also... psssssst.... here's that top secret crossword puzzle!

Do you know why four leaf clovers are so rare? Or if just one side of our brain can fall asleep? Why do fish have different colors, and how big is infinity? Lindsay & Marshall dig into the Tumble mailbag to answer listener questions with the help of Tumble’s science advisors, and respond to reviews! (Yes, we’ll talk about cats.)  We want to hear from you! Send us YOUR science questions, and let us know what you think of this mailbag episode! Here’s how to do it: Email Lindsay & Marshall at tumblepodcast@gmail.com Upload a voice recording on our website sciencepodcastforkids.com Donate to Central Texas Flood Relief: bit.ly/tumbletexasfloods Support Tumble on Patreon: patreon.com/tumblepodcast Stream Science Songs Vol. 1 here!

Listen to our brand new album of science songs, and play some games along with us as we celebrate the release of our album: Science Songs Vol. 1! It’s a special summer episode that will get you singing along and testing your knowledge of everything from capybaras to planets! Here’s where you can listen to the full album:  Spotify: Listen on Spotify Apple Music: Listen on Apple Music Bandcamp: Support us on Bandcamp Watch the music video for How Do You Catch a Happy Cappy?  Check out our Dino Map Adventure. Support Tumble on Patreon and get a birthday shoutout for just $5/month. Follow us on Instagram, and subscribe to Tumble’s YouTube channel for full episodes and much more!

Would you fly to the top of a volcano that’s about to erupt at any moment? Volcanologist Helena Buurman did, and survived to tell the tale! In 2008, Helena was monitoring Mount Redoubt in Alaska, when the ground beneath the volcano began to shake. What follows is a tale of volcanic adventure, involving earthquakes, helicopters, and a massive eruption! Tumble is on our summer break right now, working on some exciting new projects. Stay tuned to hear them in our feed! We invite you to invent your own volcano! Find resources to learn more about volcano warning signs and eruptions, on our website at www.sciencepodcastforkids.com We have more from our interview with Helena Buurman for our Patrons who pledge just $1/month or more. To listen, pledge today at patreon.com/tumblepodcast.

What if you found out that there was a tiny, nearly invisible type of plastic pollution that’s found nearly everywhere… but you’d never heard of it! That’s what happened to environmental scientist Jace Tunnell several years ago, and he’s been on a great nurdle hunt ever since! This episode on fighting plastic waste comes with a special bonus: the opportunity to enroll in a “Nurdle Patrol” and lead the Nurdle search in your community! Join the Nurdle Patrol Special Agent Training Course at sciencepodcastforkids.com/nurdles If you want to support Tumble on Patreon, just go to patreon.com/tumblepodcast. Ad-free early access to episodes is just $1/month, and for just $5/month you can get a birthday shout out on our feed! T-shirts and other merch (including merch specific to this episode) are available at the Tumble merch store, at tumblepodcast.dashery.com.

To support the Tumble Joke-ha-thon and win awesome prizes, go here! “Did dinosaurs burp?” Tune into our Season 9 premiere to find out the answer to this stinky question. We’ll hear about dino gasses from returning guest Jessica Whiteside and their potential ecological impact from David Wilkinson. Our dive into dinosaur digestion will lead us to a smelly look at gas in Earth’s past! Listen to our bonus interview episode with Dave to learn more about how he studies the past without a time machine. You can hear it when you support us for just $1 on Spotify or on Patreon on patreon.com/tumblepodcast. Free resources, including a transcript, are available on the blog on our website, sciencepodcastforkids.com Check out our new Tumble t-shirts and merch: https://tumblepodcast.dashery.com/

🎉 We’re getting ready for our biggest live event ever — Sonic Saturday! It’s a day of science, sound, and storytelling in Brooklyn, NY on May 10, and we’re celebrating by rebroadcasting one of the episodes that inspired it all: The Science of Ocean Sounds. 🌊🔊 Come join us (and special guest Dan Saks from Noodle Loaf!) for two interactive shows, hands-on science, and live demos from amazing STEM educators — including accessible science activities for blind and low-vision communities. RSVP ⁠now⁠! And if you can’t be there in person, don’t worry — we’ll have a recording available soon. ------ Explore the sounds of ocean science on a sound scavenger hunt! Tune in as oceanographer Amy Bower takes us to the sea, to show us how she uses sound to study ocean currents and make ocean science accessible for blind and visually impaired people. Listen up and help us search for clues beneath the waves to reveal the secrets of the underwater realm! Ocean data sonifications courtesy of Dr. Jon Bellona at Oregon State University, and the Accessible Oceans project. Learn more about Dr. Amy Bower in our bonus interview episode, available to Patrons who pledge just $1 or more a month to support Tumble, at patreon.com/tumblepodcast. We have free resources to keep exploring the world of ocean science and data sonification with Amy Bower. They’re on the blog at sciencepodcastforkids.com, along with a free transcript.  This episode is the first in a series featuring blind scientists. The material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts. ⁠⁠ ⁠⁠ We're also launching a fundraiser! Go visit our donation page ⁠here⁠ to make a tax deductible donation, support your favorite joke tournament contestant, and maybe even win some cool prizes!

Why is the center of a raging storm so… calm? Tumble listener Lydia wants to know what’s really going on in the eye of a hurricane. To find out, we’re flying into the storm — literally — with meteorologist Shirley Murillo! Shirley is a real-life “hurricane hunter” who flies in a specially equipped airplane to collect data from inside the hurricane itself! Discover how hurricanes form, and what keeps the center of the storm calm, and what Shirley learned while flying through Hurricane Katrina, one of the most impactful storms in U.S. history. Buckle up — it's going to be a wild ride! You can find a transcript of the episode and learn more about hurricane hunters on the blog at sciencepodcastforkids.com Send us your science questions to tumblepodcast@gmail.com and leave a review on Apple Podcasts with the help of a grownup! Support the show by becoming a Patreon member for just $1/month! This material is based upon work supported by the National Science Foundation under Grant Number # 2415575 - Culturally Situated STEM Podcasts for Kids.

Was there ever nothing in the universe? What is nothing? That’s what listener Aviva wants to know. We turned to particle physicist Dr. Jessica Esquivel to find out! She takes us on a mind-bending journey to ask what existed before the universe began, and how a quantum dance party might have started the Big Bang! This story about subatomic particles, giant magnets, and quantum physics is something that will blow your mind.  You can find a transcript of the episode and learn more about the particle party in nothing on  the blog at sciencepodcastforkids.com Send us your science questions, ideas and songs to tumblepodcast@gmail.com Support the show by becoming a Patreon member, or making a tax-deductible donation to Tumble Education, a 501c3 organization. We also have a new merch store! Go get yourself some stuff! This material is based upon work supported by the National Science Foundation under Grant Number # 2415575 - Culturally Situated STEM Podcasts for Kids.

Have you ever wondered what life on Earth would be like without trees? In this episode of Tumble Science Podcast for Kids, we’re exploring that big question with the help of two curious listeners, Rowan and Neesha!  Join Lindsay and Marshall as they talk to plant ecophysiologist Angelica Patterson to uncover the essential role trees play in our world. From providing oxygen to supporting animals and keeping water clean, trees are a crucial part of life as we know it. But could they disappear? And what happens when trees move? Plus, Angelica shares her unique (and surprising!) method for studying trees—spoiler alert: it involves a shotgun! Get ready for a wild journey into forests, photosynthesis, and the impact of climate change on trees. Don’t miss this leafy adventure! Support Tumble on Patreon by visiting patreon.com/tumblepodcast. OR donate to our new non-profit by visiting bit.ly/donatetumble

What does it take to become an inventor? To find out, we spoke with an inventor named Josh Miele about one of his greatest inventions: tactile maps! Tactile maps use braille technology to help blind people explore their neighborhoods with their fingers first. But how does Josh create brand-new inventions? Tune in to find out how inventors bring new ideas to life, and stick around to find out whether birds like wearing denim. This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts. If you want to learn more about Josh and all his inventions, go to our blog at sciencepodcastforkids.com, where we've got lots of awesome resources! If you want to make a recurring $5 donation to Tumble, you can go to bit.ly/donatetumble. Or you can support us at any level you like by going here. Or support us on Patreon at patreon.com/tumblepodcast Tumble is brought to you with support from IXL Learning. For a special discount for tumble listeners, go to IXL.com/tumble!

Why do some animals play - and some don’t? That’s what Meredith wants to know. In this special collaboration with Outside/In, we investigate how and why animals - and people! - of all shapes and sizes play. Play scientists Junyi Chu and Jackson Ham help us ask the important questions like: Can you tell an octopus to play? And what can rats teach us about why taking turns is important? It turns out that play is serious science!  This episode is a collaboration with Outside/In from New Hampshire Public Radio, and co-reported with executive producer Taylor Quimby. Taylor recommends the show for older kids and teens, and suggests these family-friendly episodes for listening together. The $1,000 balloon What's living under your porch You can make kids hike, but you can't make them hikers Learn more about animal play on the blog on our website, sciencepodcastforkids.com Support Tumble on Patreon at patreon.com/tumblepodcast. 

Why do capybaras have such big teeth? Adrian had to know! To get to the bottom of this, we spoke to a biologist named Santiago Herrera Alvarez. Capybaras are Internet sensations, and Santiago can't get enough of them! Santiago's questions were even bigger than capybara teeth: how did capybaras, a relative of rodents like mice and rats, get to be so enormous? Tune in for a capybara rodeo, and stick around to find out how one little animal can grow to superstardom. Want to learn more? Go visit us at sciencepodcastforkids.com for videos, resources, and so much more about the world's biggest rodents! If you want to support Tumble on Patreon, go to patreon.com/tumblepodcast. This material is based upon work supported by the National Science Foundation under Grant Number # 2415575 - Culturally Situated STEM Podcasts for Kids.

How does vision work? That’s what Junie wants to know. And is it possible to create vision for people who don’t see? We’ll dive into the mysteries of how we see with Lucas Nadolskis, a scientist who became blind when he was five. Lucas is studying how vision works in the brain to understand if it’s possible to see without using your eyes! Intrigued? Listen in to find out more of the mysteries behind the science of vision! This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts.

Why are there so many axolotls in fishtanks, and so few in the wild? That’s what Maximiliano wants to know. You may have found axolotls in the lush caves of Minecraft, but in real life, they live in the lakes and canals of Xochimilco, near Mexico City. But the species is slowly disappearing from its native habitat. Axolotl veterinarian Horacio Mena takes us on a journey to Xochimilco to find out what scientists are doing to save these adorable amphibians. This material is based upon work supported by the National Science Foundation under Grant No. 2415575.

Happy New Year! This is a rebroadcast of “Polar Bear Adventure” from Season 8! Join us on an Arctic adventure as we head out onto the sea ice with a polar bear scientist! Andrew Derocher shares exciting stories of flying in helicopters, getting bit by a polar bear cub, and discovering how polar bears are surviving in a warming world. Andrew explains what happens when polar bears move into human towns, in the bonus interview episode. It’s available to Patrons who pledge just a dollar or more a month on patreon.com/tumblepodcast. Teachers! Find a toolkit to share polar bear science with students, on the World Wildlife Fund’s WildClassroom.org. A transcript for this episode and other resources are available on the blog on our website, sciencepodcast.com

Happy holidays! This is a rebroadcast of our chilly Season 7 episode, The Great Seal Count. How do you count the cutest seals on the planet? With the help from thousands of people around the world! Conservation scientist Leo Salas explains the story behind the first-ever global count of Weddell seals in Antarctica. Plus, you’ll find out what counting seals shares with searching for ancient tombs! Learn more about Weddell seals in our special bonus episode with Dr. Leo Salas, available to Tumble Patrons who pledge just $1 or more a month - along with an ad-free episode feed! Support us today at patreon.com/tumblepodcast. We’ll have free resources to learn more about Weddell seals (or the ‘widdle Weddells’) on the blog on our website, sciencepodcastforkids.com. Do you speak Spanish, or are you a Spanish language learner? Subscribe to Tumble En Español to listen to episodes adapted to Spanish!  Weddell seal recordings in this episode were obtained under NMFS Permit No. 1032-1917.

This is a rebroadcast of one of our favorite episodes from Season 8! When did smartness begin? We’ll find out how a neuroscientist blends up brains, and cracks the case of the Tyrannosaurus Rex smarts! Suzana Herculano-Houzel helps us answer listener Penny’s question by explaining how “smartness” might not mean what you think - and how all animals have shown off their intelligence over time. Listen to our bonus interview with Suzana on our Patreon when you pledge just $1 a month or more! patreon.com/tumblepodcast. Learn more about Suzana and her work on the evolution of intelligence on the blog on our website, www.sciencepodcastforkids.com.

This is a re-airing of our award-winning episode The Swift Quake! This episode won the AAAS Kavli Silver Medal Award for excellence in Children's Science News, as well as a Signal Award for kid's podcasts. Give it a listen! How do you think a stadium full of Taylor Swift fans would shake the earth? Tumble enters the Swiftiverse with Jackie Caplan-Auerbach, the scientist who discovered the “Swift Quake” - a type of earthquake created by fans at Taylor Swift concerts. Find out who really “shakes it off” - when it comes to music and seismic energy. If you'd like to support Tumble, there's more than one way to do it! You can join our Patreon and get birthday shout outs if you support us at the $5 level or higher. You can also consider donating to our new non-profit organization, Tumble Education Inc.! Our aim is to support freely accessible, high quality educational audio content. Just go donate here.

What does it feel like to be in space? That’s what Elijah wants to know. So we’re taking off on a zero-gravity flight to find out! Guest reporter Jason Strother shares the story of Sheri Wells-Jensen, a blind scientist who is paving the way for people with disabilities to go to space.  This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts.  Learn more about Sheri on the bonus interview episode on our Patreon, at patreon.com/tumblepodcast.  Check out the blog on sciencepodcastforkids.com for more info!

Are cats evil? Are they hatching a plot to take over the world? Or are they just misunderstood? Scientist and cat expert Mikel Maria Delgado will tell us how the domestication of cats and dogs changed the way we think of our pets today, and she’ll explain how scientists of all ages can study cat preferences (or purr-fur-ences). Plus, she’ll share some tips on cat do’s and don’ts, so we can learn how to be better friends to our kitty companions. For more information about Mikel and more on cat science, visit our website at sciencepodcastforkids.com, where we'll have resources, videos, and more. For ad-free versions of the episode and a birthday shout-out, go support Tumble on Patreon at patreon.com/tumblepodcast.

How do species evolve? Find out in the shocking conclusion of our Monkeyflower mystery series! Plant biologist David Lowry has been tracking down clues to solve the question of why plants look different - and the yellow monkeyflower is more than a suspect. Now, it’s time to take his detective skills up a notch, and use the science of DNA. A twisted discovery will flip the case - and lead to a new chapter in understanding how life evolves.  Hear more from our interview with David, on the special bonus interview episode that’s available to Patreon members who pledge at the $1 level or higher at patreon.com/tumblepodcast.  Check out David’s monkeyflower mystery comic book on our blog at sciencepodcastforkids.com!  This material is based upon work supported by the National Science Foundation under grant 2153100: IMAGiNE: The genetic, developmental, and physiological mechanisms of plant local adaptation to oceanic salt spray.

Why do plants grow in different places? How do they adapt to different environments? And what makes them different species? Those are the questions that drove biologist David Lowry to begin a 20 year study of a shape-shifting plant called the yellow monkeyflower. It begins with a road trip, and ends up questioning everything you think you know about the definition of species. Get ready for a wild, plant-fueled ride into science! Hear more from our interview with David, on the special bonus interview episode that’s available to Patreon members who pledge at the $1 level or higher at patreon.com/tumblepodcast.  Check out photos and video of the yellow monkeyflower on our blog at sciencepodcastforkids.com!  This material is based upon work supported by the National Science Foundation under grant 2153100: IMAGiNE: The genetic, developmental, and physiological mechanisms of plant local adaptation to oceanic salt spray.

Ever wondered how dinosaurs left their footprints behind millions of years ago? We embark on a prehistoric adventure with renowned paleontologist Paul Olsen! Discover the secrets behind dinosaur tracks and how these ancient prints can tell us incredible stories about the lives of dinosaurs. From the science of fossilization to what these footprints reveal about dinosaur behavior and habitats, Paul Olsen will guide us through the fascinating world of these mysteries left in stone - and share how he discovered thousands of dino tracks when he was just a kid. Join us on a Dino Map Adventure at nepm.org/dinomap! We’ve created a free audio tour to explore the science and history of dinosaur tracks in the Pioneer Valley of Massachusetts. Lindsay and Marshall will guide you through the place where dinosaur footprints were first discovered - and put you on the path to becoming dino track explorers! Dinosaur Adventures in the Pioneer Valley are supported by The Bement School, The Center School, and HCS Headstart. If you like this episode, consider supporting Tumble on Patreon by going to patreon.com/tumblepodcast. Get ad-free episodes for just $1 a month!

What do you call a scientist who studies poop? A poopologist! We’re exploring the stinky science of “poopology” at the zoo, to discover what poop can tell us about animal behavior! Poopologist Laurel Wescott, at the Oregon Zoo, will take us on a journey to find how chemicals found in animal poop can help zoo animals stay healthy. Plus, she’ll clue us in on the “cutest” and most surprising poops, and so much more! For more information about Laurel and the poop she studies, visit our website at sciencepodcastforkids.com, where we'll have resources, videos, and more. For ad-free versions of the episode and a birthday shout-out, go support Tumble on Patreon at patreon.com/tumblepodcast.

“Do dogs think and feel the way we do?” We all know dogs can’t talk. That’s why scientists have to come up with creative ways of asking our canine companions what’s going on in their minds. We’ll find out why dog cognition scientist Zachary Silver put on a play for dogs - which inspired us to create Tumble’s very first dog radio theater production! Just call us “The Tumble Dog Players.” It will all make sense by the end of the episode. This is a rebroadcast of one of our favorite episodes from Season 8. We hope you enjoyed it! It was selected as a rebroadcast favorite by our supporters on Patreon, and if you want to vote on future events or hear more on our bonus interview episodes, just go support us on Patreon at the $1 level or higher at patreon.com/tumblepodcast. You can also buy tickets for our DinoTastic live performance in Brooklyn at bit.ly/DinoTastic Free resources, including a transcript, are available on the blog on our website, sciencepodcastforkids.com Check out our new Tumble t-shirts and merch: tumblepodcast.threadless.com

This is a rebroadcast of one of our favorite episodes from the past. Do bugs have elbows? That’s what Clare wants to know. Her question starts a debate between Team Bug Arms and Elbows, and Team Bug Legs and Knees! Choose a side, and come on the trail of a bug bod mystery with superstar entomologist and dragonfly specialist Jessica Ware. Turns out, dragonflies are a lot weirder (and ancient!) than you might think! Hear more from our interview with Jessica! Check out our bonus interview episode, available to patrons who support the show at just $1 a month or more. It’s on our exclusive ad-free podcast feed, along with all of our other bonus episodes! We also have free resources of cool bug and dragonfly science on the blog at our website, sciencepodcastforkids.com. To go see our live performance in Brooklyn, go to http://bit.ly/DinoTastic for tickets!

This is a rebroadcast of one of our favorite episodes from Season 8! This was voted on by our patrons on Patreon--if you want to help us pick our next AND FINAL REBROADCAST OF THE SUMMER--just go to patreon.com/tumblepodcast and vote. You don't have to be a supporter to vote, but we'd appreciate it if you were! Can we hear and touch the stars, if we can’t see them? Yuma Decaux is trying to put the night sky into everyone’s hands, through technology and engineering. Find out how stargazing captured Yuma’s imagination when he was six, and how losing his sight inspired him to explore the cosmos in a whole new way - making astronomy accessible to everyone.  Astreos, Yuma’s app, is currently in Beta. That means that when you try it out, you can give Yuma feedback on how to make it better! Download it on iOs here: https://astreos.space/ Listen to our bonus interview episode with Yuma to learn more about how he developed Astreos and what accessibility means to him. You can hear it when you support us on Spotify or on Patreon at patreon.com/tumblepodcast. There are free resources, including a transcript, about this episode on the blog on our website, sciencepodcastforkids.com.  This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts. If you're an upper elementary teacher, and you'd like to join our project for Year 3, just go to this link and fill out the survey: https://bit.ly/SSPTeacherY3. Our research team will contact you later if you are selected. Sounds in the episode are courtesy of Astreos and Cricket Ambi by VMan533 on freesound.org

This is an encore episode, picked by our Patreon supporters. If you want to go vote for our next encore, just go to patreon.com/tumblepodcast to go vote! You don't have to be a patreon supporter to vote, but it does help! Why do bubbles pop, and why do bubbles have shadows? We’re in double bubble trouble with two listener questions. Luckily, Dr. Bubbles is here to save the day! We’ll find out how a normal, everyman physicist named Justin Burton became a superhero bubble scientist, on a quest to make a scientifically proven recipe for giant bubbles. Along the way, we’ll discover the answers to our listeners’ bubbling curiosity.  Hear from the inventor of edible bubbles, Li Wei Tan, in a bonus interview episode available on our ad-free Patreon feed! It’s available for just $1/month when you pledge to support Tumble at patreon.com/tumblepodcast.  We’ll have free resources about bubbles on the blog on our website, sciencepodcastforkids.com. If you want to buy tickets to our live event in West Stockbridge, go to bit.ly/TumbleLive! We'd love to see you there!

Happy Halloween! We’re headed to Candy Land, a sugary laboratory where mathematicians found a mysterious candy dagger appear - over and over again. So gather up your candy box, and let’s discover out why mathematicians are studying candy to understand the real-life landscapes around us. Mathematician Leif Ristroph shares how he stumbled into making sweet experiments.  Want to learn more about the reason behind Leif’s experiments? Listen to our bonus interview episode, available for Patrons at the $1/level a month or higher. Pledge now at Patreon.com/tumblepodcast! We have Leif’s special recipe for “research-grade candy” on our website. Check it out on the blog at sciencepodcastforkids.com! Want to see Lindsay and Marshall perform LIVE at the Foundry in West Stockbridge, MA? Go get tickets here.

This is an encore of one of our favorite episodes from Season 5! If you'd like to help us choose our next episode, go to our Patreon and VOTE! You don't have to pledge to support us in order to vote, but if you do we'd appreciate it a ton! What’s it like to be a kid doing experiments in one of the most famous science places in the world? Oscar and Mae Johnson were nine and twelve when they traveled to the Galapagos Islands with their scientist dad. The Galapagos are isolated tropical islands made famous by Charles Darwin, who came up with the theory of evolution based on his research there. Mae and Oscar followed in Darwin’s footsteps. With help from their parents, they conducted their own research and got it published in a scientific journal - a big deal for scientists of every age! Hear Mae and Oscar tell their own story of science discovery in this episode.  See photos of Oscar and Mae doing their experiment on our blog at sciencepodcastforkids.com! We also have more resources to learn about the Galapagos there.  Want to learn more about Mae and Oscar’s great science adventure and experiments? We have a special bonus interview episode available for our Patrons. Just pledge $1/month for this and all our scientist interviews at patreon.com/tumblepodcast.

This is a summer encore episode of one of our favorite episodes from Season 4 of Tumble! Do you love fossils, adventure, and spending time in small spaces? If so, you could become an underground astronaut! Marina Elliot, Becca Peixotto, and Kenni Molopyane found this unusual job description through a Facebook ad, and landed deep inside a cave that few people can access. The team of archeologists talked to Tumble in the middle of excavating Homo Naledi, one of the biggest recent discoveries on the human family tree. Find out how they squeeze through a 7 inch gap on their daily commute, and how their work could change the way we understand early human history. If you want to vote on Tumble's next re-broadcast for the summer, go to https://bit.ly/SummerTravelPoll and vote! While you're there, think about subscribing at the $5 level or higher to get birthday shout outs, interview extras, and more!

Is it possible to build a time machine? Can we time travel someday? That’s what Tumble listener Willa wants to know. Clifford Johnson, a theoretical physicist and film consultant, says that there’s real science behind the time travel - and he’ll tell us what it takes to do it. To learn more about time travel, go visit our blog at sciencepodcastforkids.com, where you can find all sorts of awesome resources to go along with this episode. This is our last episode of season 9! If you like what we do, why not support our show on Patreon? Just go to patreon.com/tumblepodcast and support us at any level for ad-free episodes, or for $5 a month you can hear a happy birthday wish on our show. Visit our Threadless shop to get awesome tumble t-shirts: tumblepodcast.threadless.com

How do scientists find out if an asteroid might hit our planet? And what do they do if it’s on a collision course with Earth? We’ll meet a planetary defender - an astronomer who uses radar telescopes to defend our planet from space rocks! Edgard Rivera Valentín grew up in Puerto Rico, next to Arecibo, the world’s most powerful radar telescope. Hear the story of how Edgard became a scientist superhero, and the supervillain asteroids they’re up against.  A bonus interview episode with Edgard is available to Patreon members who pledge at the $1 level or higher at patreon.com/tumblepodcast.  Check out more resources about Arecibo and asteroids on our blog, at sciencepodcastforkids.com. Listen to Tumble en Español! Search for “Tumble en Español” wherever you get your podcasts, or on our website under “En Español.”

How did cicadas evolve to go underground for so long? Why do cicadas spend so much of their lives underground? That’s what listeners Gus and Zachary want to know. This spring, up to a TRILLION cicadas will emerge across 16 states in the U.S., in an event that hasn’t happened since 1803. Cicada scientist Chris Simon helps us dig into the surprising science of cicadas - and figure out how they’re changing on this science podcast for kids.  Listen to our interview episode with Chris Simon, available to Patreon members who pledge at the $1 level or higher at patreon.com/tumblepodcast.  We also have free resources on our website - including maps of the emergence and links to download Cicada Safari, a citizen science cicada project. That’s on the blog at sciencepodcastforkids.com. Buy Tumble gear at our threadless shop! ¿Hablas español? Hay más episodios de nuestro podcast Tumble en Español en nuestro sitio web, https://www.sciencepodcastforkids.com/tumble-en-espanol.

Scientists stage an alien abduction to learn how bacteria avoid antibiotics, in this fact-meets-fiction episode! Meet our alien bacteria invaders (fiction) and our real life scientist, Caroline Blassick (fact) as they face off in a battle of microbial life and death. We’ll find out how Caroline implants mind-control devices in bacteria to improve human health, in bioengineer Mary Dunlop’s lab. Our bacteria are played by Clara and Elijah, middle school STEM students.  This episode is supported by the National Science Foundation under award number MCB 2032357.  Learn more about “alien bacteria” on the bonus interview episode on our Patreon, at patreon.com/tumblepodcast.  We have more free resources about bacteria and antibiotics available on the blog on our website, sciencepodcastforkids.com

Why can’t we see black holes? Can we see black holes with a telescope? That’s what Tumble listener James wants to know. We explore the science of supermassive black holes and gravitational waves, with the help of astronomer Maura McLaughlin. Find out how the LIGO telescope is aiding in the search for supermassive black holes on an intergalactic collision course! ANNOUNCEMENT: Tumble en Español, the Spanish adaptation of Tumble, is back for Season 3! Listen here: https://www.sciencepodcastforkids.com/tumble-en-espanol Learn more about black holes and gravitational waves on the science podcast for kids blog on our website, sciencepodcastforkids.com Listen to Maura talk about the science of pulsar stars - the key to finding gravitational waves and black holes - in our bonus interview episode, available when you support us on Patreon for just $1 or more a month on Patreon.com/tumblepodcast.

On April 8, 2024, a total solar eclipse is coming to the United States! Join us for Tumble’s Eclipse Spectacular with games, music, and a thrilling audio experience to learn what it’s like to be on the path of totality. Eclipse expert Vivian White guides us and our listeners through the mysteries of this rare astronomical event. You’ll be singing our new song, “Total Eclipse of the Sun” with your eclipse glasses on!  Hear our bonus interview episode with Vivian on our Patreon feed at patreon.com/tumblepodcast, when you pledge just $1 or more a month. There’s more free resources to learn about the eclipse on the blog on our website, sciencepodcastforkids.com “Total Eclipse of the Sun” will be available on Spotify by eclipse day!

What does a spider web sound like? Join us as we weave a web of connections between science and music - and learn some truly mind-blowing facts about spiders! MIT scientist and musician Markus Buehler shares his journey into the spiderverse, turning spider silk into instruments and making materials from nature.  Watch Markus’ spider music videos on the blog on our website, sciencepodcastforkids.com The song "Spider Variations" by Markus Buehler was used with permission from Markus. The sounds are based on a sonification method of a spider web as described in the references below [1-2], part of a larger collaboration with Tomás Saraceno, Saraceno Studios, Ally Bisshop, Thomas Muehletahler, and Evan Ziporyn, and the MIT Center for Art, Science and Technology (CAST). Hear more of Markus' songs on his Soundcloud: https://soundcloud.com/user-275864738 Hear more from Markus about materials and music in our bonus interview episode, available when you support us on Patreon for just $1 or more a month on Patreon.com/tumblepodcast.

When human health is on the line, it’s a case for a molecular detective! Meet Mona Minkara, a scientist who studies molecular clues to solve big crimes inside the body. She’s tracking down the criminals who creep into our bodies to make us sick. Find out how Mona uses her powers of observation to solve mysteries just like her hero, Sherlock Holmes. Support Tumble on Patreon to join Lindsay and Marshall on Zoom! Just go to patreon.com/tumblepodcast and support at ANY LEVEL! Learn more about Mona's work on the bonus interview episode on our Patreon, at ⁠⁠patreon.com/tumblepodcast⁠⁠.  Check out free resources for this episode available on the blog on our website, ⁠⁠https://www.sciencepodcastforkids.com/

How do you think a stadium full of Taylor Swift fans would shake the earth? Tumble enters the Swiftiverse with Jackie Caplan-Auerbach, the scientist who discovered the “Swift Quake” - a type of earthquake created by fans at Taylor Swift concerts. Find out who really “shakes it off” - when it comes to music and seismic energy. Hear the other "sounds" of Jackie's earthquake and volcano research on the bonus interview episode on our Patreon, at ⁠patreon.com/tumblepodcast⁠.  Check out free resources for this episode available on the blog on our website, ⁠https://www.sciencepodcastforkids.com/ Concert music in this episode was recorded by Ana Hedrick at a Taylor Swift show in Seattle, and used as data by Jackie Caplan-Auerbach.

What are the origins of human language? That’s what Elliana wants to know. Linguist Robert Englebretson joins us for a time travel adventure to unravel the mysteries of a question that has stumped scientists for centuries.  Learn more about the study of language with Robert Englebretson on the bonus interview episode on our Patreon, at patreon.com/tumblepodcast.  Check out free resources for this episode available on the blog on our website, https://www.sciencepodcastforkids.com/ This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts.

It’s Tumble’s 150th episode! 🥳 To celebrate, we had a Quiz Show with four of our biggest fans. Hear our Patrons Zoe, Kai, Eleanor and Avery compete in Tumble trivia with questions from episodes across all nine seasons of our podcast! You can play along at home, too! Click here or visit our blog at sciencepodcastforkids.com to find an online quiz form that you can fill out as you listen. There will be a prize for our first three winners! Thank you to our amazing contestants! If you would like to compete in a future quiz show and help support the show, sign up to become a Tumble Patreon on patreon.com/tumblepodcast. You’ll get access to ad-free episodes, bonus content, and more goodies like these Quiz Shows.

Happy Holidays! If you would like to help support Tumble and get a last-minute holiday gift, consider becoming a Patreon member! Pledge your support on Patreon.com/tumblepodcast to get access to ad-free episodes, bonus interview extras, and your very own shoutout! Before we go away on break, we’re sharing one of our favorite episodes: “Do Dreams Have Meaning?”. Join neuroscientist Sidarta Ribeiro as we unveil the fascinating history of dreams and witness how science revolutionized their interpretation forever. From ancient gods to Freud's couch, we'll discover how an 8-year-old boy contributed to a major scientific breakthrough, all while asleep. Learn three steps to unlock the meaning of your own dreams before drifting off to Dreamland. Sweet dreams!

Our 150th episode is coming up! To celebrate, we’re doing a quiz show with trivia from all 9 seasons of Tumble! Get entered to be on the show: Sign up now to become a Tumble Patreon on patreon.com/tumblepodcast, and tell us why you would make a great contestant! (Microphone licking not required.) How likely is it that we’ll find intelligent alien life on other planets? Are there extraterrestrial civilizations that we could contact - or that could contact us? And what would these aliens be like? We’re going to try to answer these big questions with the help of two scientists, and a very famous math equation. We have free resources available on the blog on our website, ⁠https://www.sciencepodcastforkids.com/single-post/do-aliens-exist

When you have to go, where does it go? That’s what our listener Ellie wants to know. Prepare for potty humor and science as we hear from civil engineer and toilet expert Francis de los Reyes! Who invented the toilet? And what’s “The Great Stink?” We’ll be plunging into the past, present, and future of flushing to discover how toilets don’t just save us from stinky smells - they save lives.  Thanks so much to KiwiCo for sponsoring this episode. If you want to get 50% off your first month of any crate, go to kiwico.com/TUMBLE.

What would the world be like without animals? Rae Wynn Grant - ecologist, podcaster, and bear cub cuddler - gives us a picture of what would happen if animals disappeared, and explains how we can stop it from happening. We’ll find out how the Endangered Species Act has worked for over 50 years to save endangered species, and how we can make it even better for the next generation. Thanks to Elliana, as well as Hadley and Roman for their question!  This episode is part of the Kids Podcast Party! Tumble and other kids podcasters are making episodes to commemorate the 50th anniversary of the Endangered Species Act. Want to hear more? Check out Smash Boom Best, and their episode about Capybaras vs. Komodo Dragons.  Hear more from our interview with Rae Wynn Grant - host of Going Wild with Rae Wynn Grant - on the bonus interview episode on our Patreon, at patreon.com/tumblepodcast We have free resources for this episode on the blog on our website, sciencepodcastforkids.com.

It’s a Halloween episode! “There’s a scary secret lurking in the kitty litter…” We’re making a horror movie about a common cat parasite - that can control minds! Toxoplasma gondii makes mice lose their fear of cats, in a plot to take over the world! Biologist Sebastian Lourido helps us tell the true tale of toxoplasma’s quest for cat domination, and what scientists are doing to stop the parasite in its banana-shaped tracks.

How does reading work in the brain? It’s a question that has fascinated scientists for years. Could braille - the system of raised dots that blind and low vision people use to read - be the key to understanding how it works? We talk to writer Andrew Leland (“The Country of the Blind”) and neuroscientist Simon Fischer-Baum to learn about the invention of braille, and how it could be the key to learning how reading works - for everyone. And we might just solve a bedtime reading mystery along the way.  Learn more about braille on the bonus interview episode on our Patreon, at patreon.com/tumblepodcast.  We have more free resources about braille and the science of reading available on the blog on our website, sciencepodcastforkids.com This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts.

Do fungi breathe? That’s what listener Alice wants to know - and we’ll find out in our punniest episode yet! We visit the Fungarium - the largest and oldest collection of fungi in the world with curator Lee Davies, who describes himself as a “librarian” of mushrooms. We’ll explore how fungi live and die, and why there’s so many species left to discover. Watch out for the zombie fungi! And beware, Lindsay and Marshall don’t hold back on the “fun guy” puns! Our series "Life Lab" is a Signal Award Finalist! Vote for us to win the Gold Medal here: https://vote.signalaward.com/PublicVoting#/2023/limited-series-specials/general/kids Also check out our Threadless store! https://www.threadless.com/@Tumble_Podcast

Tune into our Season 9 premiere to find out the answer to this stinky question. We’ll hear about dino gasses from returning guest Jessica Whiteside and their potential ecological impact from David Wilkinson. Our dive into dinosaur digestion will lead us to a smelly look at gas in Earth’s past! Listen to our bonus interview episode with Dave to learn more about how he studies the past without a time machine. You can hear it when you support us for just $1 on Spotify or on Patreon on patreon.com/tumblepodcast. Free resources, including a transcript, are available on the blog on our website, sciencepodcastforkids.com Check out our new Tumble t-shirts and merch: https://tumblepodcast.threadless.com/

A new season of Tumble is coming soon! Have you ever wondered whether dinosaurs burped? Or where the largest fungus collection in the world is? Or how braille was invented? Learn that and more in the newest season of Tumble! Also, if you love our show, make sure to tell three people you know about how awesome you think it is. It really helps us out!

Join Marshall on a Cave Road Trip! On Season 8’s last road trip, you’ll find cave-themed episodes of Tumble, featuring bats and archaeology! Avoid the stalagmites and tune in to these fun episodes: The Journey to the Bat Cave Inside the Bat Cave [BONUS] The Cave of the Underground Astronauts The Cave of The Neanderthal Tools Free resources, including a transcript for each episode, are available on the blog on our website, sciencepodcastforkids.com Check out our Tumble merch here: https://tumblepodcast.threadless.com/  Become a Spotify subscriber: https://podcasters.spotify.com/pod/tumblescience/subscribe

Do you ever wonder what would happen if Cinderella started her own rock band or if Medusa realized just cool her hair was? Well … there’s a Webby Award winning show called Girl Tales that takes classic stories and puts a unique twist on them, giving girls the chance to save the day, use their intelligence and bravery, and show that they can be the heroes of their own stories! If you're ready for an adventure, find Girl Tales wherever you get your podcasts!  Meema (or Memory) and her sisters run the most successful inspiration factory in the universe: The Idea Factory! In the Idea Factory, they don't make money, they make ideas! Meema wants to tell you a story (that's never-ended) about Narcissus & little black mirrors that make everyone just like him, obsessed with themselves and what the mirror reflects back at them!  This Girl Tales episode won the Variety/Gotham Audio Honors in 2022. Written by Georgina Escobar Starring: Barron Bass, Jennifer Sun Bell, Adriana Colon, & Mindy Escobar-Leanse Produced by Chad Chenail Assistant Produced by Megan Bagala Executive Produced by Rebecca Cunningham

We're still on vacation, and while we wait to come back for our ninth season of Tumble Science Podcast for Kids, we're sharing one of our favorite episodes from a few years ago: The Cave of the Neanderthal Tools. What tools did Neanderthals use? That’s what Leo wants to know. We dig into the past of Neanderthal archeology, back to when people used to excavate caves with dynamite! Archeologist and author Rebecca Wragg Sykes shares the explosive story of how Neanderthals made tools, and what they can tell us about how Neanderthals lived. Listen to our bonus interview episode with Rebecca about Neanderthals caves, available for Patrons who pledge just $1/ month or more on patreon.com/tumblepodcast. Learn more about Neanderthals and their “knapping” habits with the free resources on our blog at www.sciencepodcastforkids.com.

Did you know that you can listen to Tumble in Spanish?! Tumble en Español is our Spanish podcast, hosted by native Spanish speakers Nuria Net and Alvaro Ramos. It’s an adaptation, not a translation! Meet Nuria in this episode and learn Tumble en Español’s special sign-off. Then, listen to one of our favorite episodes in both English and Spanish. To hear more, subscribe to Tumble en Español at http://tumbleenespanol.com/ or navigate to “En Español” at sciencepodcastforkids.com. There are transcripts for each episode!

About The Ten News  The Ten News podcast explores topics that kids care about most including events, sports, science, gaming, pop culture, entertainment, and more!  It’s a great way for you and your family to stay connected with what’s going on in the world.  The Ten News also features some pretty awesome guests; LEGO Masters Judge Amy Corbett, America’s top doctor Dr. Anthony Fauci, Sarah Natochenny, the voice of Ash Ketchum for Pokemon fans, and many more.  Our episodes are all about staying kind, cool, and curious.  We hope you enjoy listening to The Ten News!  Say hi at hello@thetennews.com Instagram - https://www.instagram.com/thetennews/

This special Road Trip edition of Tumble includes all five episodes of our Life Lab series, back to back! Listen to hear how scientists are using tiny life to go to Mars, solve climate change, make better clothes, and much, much more. Life Lab explores the incredible power of a new technology you probably haven’t heard of. This technology could solve some of the biggest challenges on our planet, and beyond. But with great power, comes great responsibility. We ask important questions about whether it could - or should - change our future. Thank you to our sponsor Kids’ Chemical Solutions and their chemistry comic book series filled with colorful characters and exciting storylines. Order now at www.kidschemicalsolutions.com. Check out our Tumble merch here: https://tumblepodcast.threadless.com/ Become a Spotify subscriber: https://podcasters.spotify.com/pod/tumblescience/subscribe

It's Tumble's first science quiz edition! Play along as Tumble fans Arlo and Talyse compete in three science games: Purr Vs. Roar, What Does the ____ Say?, and Does It Fart? Lindsay and Marshall play quiz masters, while their contestants make a surprising discovery. And that's before the quiz even starts! If you enjoyed this quiz show and would like to hear more, let us know! To support our show and get ad-free episodes - plus the chance to be on an episode like Arlo and Taylse - join our Patreon at Patreon.com/tumblepodcast. Listeners help us keep making Tumble and give us the freedom to try new things! We'll be back with all new, original episodes in September 2024. Thank you to our sponsor Kids’ Chemical Solutions and their chemistry comic book series filled with colorful characters and exciting storylines. Order now at www.kidschemicalsolutions.com.

We'll be back with a new episode in two weeks! What would Earth be like if our oceans never existed? That’s what Charlie wants to know! We recruit Earth detective Lucia Perez-Diaz to help us track down clues hidden within our planet’s rocks. Our investigation takes us through the mysteries of how water got on Earth, the giant plates moving beneath our feet, and why our oceans are shaped the way they are. Lucia’s also an illustrator, and will draw us an Earth without oceans. What will it look like? Listen to find out. Hear this episode (and Lucia!) en Español on Tumble en Español: Qué pasaría si los océanos no existieran? Learn more about how Lucia uses her detective skills to reveal the last 200 million years of Earth’s history, on our special bonus interview episode. It’s available to Patrons who pledge $1 a month or higher! You can support our show and get our ad-free feed on Spotify or patreon.com/tumblepodcast

“Do dogs think and feel the way we do?” We all know dogs can’t talk. That’s why scientists have to come up with creative ways of asking our canine companions what’s going on in their minds. We’ll find out why dog cognition scientist Zachary Silver put on a play for dogs - which inspired us to create Tumble’s very first dog radio theater production! Just call us “The Tumble Dog Players.” It will all make sense by the end of the episode. This is the final episode of Tumble’s 8th season! But stay subscribed for some special treats over the summer.  Hear more from our interview with Zachary Silver on our bonus interview episode. It’s available for listeners who pledge $1 or more a month on Patreon.com/tumblepodcast. Free resources, including a transcript, are available on the blog on our website, sciencepodcastforkids.com Check out our new Tumble t-shirts and merch: https://tumblepodcast.threadless.com/ Also check out courses from Science Mom, one of our sponsors this week: https://bit.ly/TumbleMom

Can we hear and touch the stars, if we can’t see them? Yuma Decaux is trying to put the night sky into everyone’s hands, through technology and engineering. Find out how stargazing captured Yuma’s imagination when he was six, and how losing his sight inspired him to explore the cosmos in a whole new way - making astronomy accessible to everyone.  Astreos, Yuma’s app, is currently in Beta. That means that when you try it out, you can give Yuma feedback on how to make it better! Download it on iOs here: https://astreos.space/ Listen to our bonus interview episode with Yuma to learn more about how he developed Astreos and what accessibility means to him. You can hear it when you support us on Spotify or on Patreon at patreon.com/tumblepodcast. There are free resources, including a transcript, about this episode on the blog on our website, sciencepodcastforkids.com.  This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts.  Sounds in the episode are courtesy of Astreos and Cricket Ambi by VMan533 on freesound.org

When did smartness begin? We’ll find out how a neuroscientist blends up brains, and cracks the case of the Tyrannosaurus Rex smarts! Suzana Herculano-Houzel helps us answer listener Penny’s question by explaining how “smartness” might not mean what you think - and how all animals have shown off their intelligence over time. Help us out by taking our listener survey! https://www.surveymonkey.com/r/tumblepodcast Listen to our bonus interview with Suzana on our Patreon when you pledge just $1 a month or more! patreon.com/tumblepodcast.Learn more about Suzana and her work on the evolution of intelligence the blog on our website, www.sciencepodcastforkids.com. We apologize that the cover art of the episode is not a scientifically accurate portrayal of a T.Rex! We know that they likely did not wear graduation caps.

Have you ever wondered what bird you’re hearing? We’re going to discover how to recognize birds by their sound - and what that means for science. Trevor Attenberg is an environmental scientist and science communicator who learned to identify birds without sight, by their sound alone. He takes us through his journey to becoming a birder and a scientist, and shares how you can learn to recognize birds by their sound.  Learn more about Trevor, and find his recommended resources for birding on the blog on our website, www.sciencepodcastforkids.com.  This material is based upon work supported by the National Science Foundation under Grant Number # 2148711 - Engaging Blind, Visually Impaired, and Sighted Students in STEM with Storytelling through Podcasts. Take our survey to help support the podcast! Just go to https://bit.ly/TumbleScienceSurvey and spend a few minutes of your time answering questions.

How big is the universe? And how do we know? It's a question that puzzled astronomers for centuries. They had no way to measure distance in space - until Henrietta Leavitt showed them how. Henrietta Leavitt was a "computer" in the 19th century, before there were computers, and she made an incredible discovery that would help change the way people thought about the universe - forever. Modern-day astronomer Karen Masters helps us tell her remarkable story. If you like this episode, you'll love our free audio course, "Cataloging the Universe" where you'll learn much more about how Henrietta Leavitt's discovery made a big difference in astronomy - plus, you'll become a skywatcher yourself! "Cataloging the Universe" is more than a podcast. It’s interactive! Each episode - or lesson - in the series contains activities to complete while you listen. Plus, you’ll get discussion questions, graphic organizers, and a star journal to keep your observations in. Check out the series and download all the resources at our website! Hear more from Karen Masters in the bonus interview episode available to Patrons, when you pledge just $1 a month or more on our Patreon to support the show! We have free resources available on our blog to learn more about the episode.

We're working on a special project that we'll announce in our next episode! Enjoy one of our favorite episodes while we make it ready for you.    Why and how do cats purr? That’s what Reid wants to know. It sounds like a simple question, but it leads us to a deep challenge: Can we ever understand cats? To find out, we launch a full-scale cat purr investigation. You’ll hear from a puzzled veterinarian, a scientist who studied her cat’s annoying purr, and the author of purring.org, the premier cat purr research website. It’s a purr-fect episode for everyone who’s curious about cats.