Tumble Science Podcast for Kids

Who would win in a competition, a hamster or bacteria? Place your bets, because we’re going to tell the story of this epic science showdown. Danielle Tullman-Ercek is a synthetic biologist trying to find a better way to make life-saving medicine. To do it, she’s engineering a bacteria cell to compete with a medicine-making hamster cell. Listen to find out what if Danielle and her bacteria have what it takes to win. What’s a hamster cell doing making medicine, anyway?! If you engineered your own bacteria, what would it make and why? Draw a picture and email it to us at [email protected]! To learn more about synthetic biology, check out our blog. Want to learn more about cell biology and engineering bacteria? We have a special bonus interview episode with Danielle for our Patreon members! For only $1/month, you’ll get twice the Tumble goodness to dive deeper into all our new episodes. Pledge here: patreon.com/tumblepodcast.

How do species get their scientific names? To find out, Lindsay and Marshall take a field trip behind the scenes at the Smithsonian National Museum of Natural History. That’s where we meet Chris Mah, a sea star scientist who has discovered and named over 50 new species! (You might remember him from “The Surprising Story of Sea Stars’ Sticky Feet.”) Chris shows us next season’s hottest new sea stars, shows off his amazing toy collection, and shares the secrets behind his super naming super powers. What would you name a new species, and why? Tell us at [email protected]. See Marshall’s photos from our trip, including Chris’ amazing office and the giant not-so-giant sea star he shows us in the episode. It’s on our blog at sciencepodcastforkids.com. Hear a bonus “interview episode” with Chris Mah when you support Tumble on Patreon! Plus, hear from scientists from all our recent episodes! Pledge here: patreon.com/tumblepodcast

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. Hear more from inside the cave with Marina, Becca, and Kenni when you pledge $1/month on Patreon! Support Tumble and get bonus interview episodes of new episodes. Find out more about Homo Naledi, and how you can explore the cave in virtual reality, with resources on our blog.

Join us for a journey through Tumble's favorite animal episodes! Swim with whale sharks in Mexico, climb mountains with pikas, travel back in time to discover our earliest primate relatives, and more. Download two hours of stories of animal science discovery, and you'll be all set to turn your road trip into an animal adventure. For a collection of episodes about astronomy, check out The Road Trip To Outer Space. We'll be back January 11 with brand new episodes. Have a great holiday!

We're going on an indoor expedition to discover the species in our own home! You’ll never look at the bugs in your house the same way again. Ecologist and author Rob Dunn is our guide to exploring what he calls, “the unknown we wake up in every morning.” We’ll find out how many species live in the average home (it’s more than you think!) and tell you how you can conduct your own scientific survey inside your house. It’s an activity that could help scientists discover indoor wildlife all around the world. To learn how you can sign up for Rob’s citizen science project, Never Home Alone, check out our blog at www.sciencepodcastforkids.com/blog. Our friend Science Mom has created a downloadable coloring book and indoor bug guide, special for this episode! It’s available to our Patreon members at all levels. To get it, just pledge any amount to support the show at https://www.patreon.com/tumblepodcast.

What’s it like to go inside the world’s largest bat colony? In this special bonus episode, we’re sharing part of our interview with Jessica Dreyer, modern day Bat Woman and biologist. (Remember her from “The Journey to the Bat Cave”?!) Find out why a cave just outside San Antonio, Texas is home to 15 million bats - the largest gathering of mammals anywhere on the planet! Want to get behind-the-scenes of our stories of science discovery? Join our Patreon campaign to get bonus interview episodes with every new episode of Tumble! Starting at only $1 a month, you’ll get access to a special podcast feed with all of our regular episodes, PLUS interviews! A Patreon subscription is a great holiday gift for any Tumble fan. Better yet, your support helps us keep making the show! Here’s the rest of our great Patreon rewards: \$5 a month: A shoutout when you join, a special birthday greeting, and the chance to answer OUR science questions on the podcast. \$10 a month: All that plus a Tumble t-shirt. \$20 a month: Superfan level! We send you everything plus a handwritten postcard from Barcelona! Pledge now at patreon.com/tumblepodcast to pledge at any level. Every little bit helps! We can’t wait to share more stories of science discovery with you.

Today we’re presenting the first episode of Becoming Mother Nature, a show from our friends at Gen-Z Media. It’s recommended for listeners 9 and up. For the rest of our listeners, we’ll be back with a new Tumble episode next month! When Chloe is sent off to live with her mysterious and eccentric grandmother, she learns an unbelievable secret. Grandma Ivy is none other than Mother Nature herself! And Chloe is next in line to assume the power and responsibility of the job. Can a twelve-year-old learn to balance the entire world’s ecosystem while just trying to fit in at her new school? Only Mother Nature knows.

Not a true crime story, but a true science story! Starring a murder of crows, a person in a creepy mask, and one very curious scientist named Kaeli Swift. We unravel the mystery of what appears like scene from a Halloween fright night, but is actually an experiment designed to reveal the reasons for some very weird crow behavior. Turns out, you can get a lot of strange looks on the road to science discovery. NOTE: This episode is about the scientific study of death in animals. No animals die in this story, but listeners uncomfortable with this topic might want to skip it. Other Halloween episodes are “We Ain’t Afraid of No Ghosts!” and “The Laboratory of the Haunted House.” To see a photo of someone wearing the mask, and watch a video of Kaeli’s study, visit our blog at sciencepodcastforkids.com. We have more from our interview with Kaeli, on our special ad-free Patreon feed! Learn about how Kaeli followed her curiosity from this experiment, to fascinating studies on what crows might actually be thinking during a crow funeral. Pledge starting at $1/month today, at patreon.com/tumblepodcast. Send us your science questions, and tell us about your Halloween-inspired experiments! Email us at [email protected]. Happy Halloween!

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!

A volcanologist imagines a world without volcanoes, and tells us how her recipe for homemade lava bombs might lead to discoveries about ancient volcanoes in outer space! It turns out that volcanoes do more for planets than create natural pyrotechnic displays. You’re guarenteed to be blown away by volcanologist Erika Rader’s EXTREME VOLCANO SCIENCE PROJECT. Spoiler alert: It involves a huge cauldron of molten rock, an aircannon, and a forklift. Tell Erika what YOU would do with a lava machine: Email us at [email protected] with a drawing or recording, and we’ll pass your ideas on! Join our Patreon campaign to hear more from our interview with Erika, on our ad-free podcast feed: patreon.com/tumblepodcast Special thanks to Rob Griffiths for his help with this episode! Check out his podcast, Bedtime.FM and Peace Out on the Kids Listen app - kidslisten.org.

Join us on a field trip to the biggest bat colony in the world! Bracken Cave is home to 15 million Mexican free-tailed bats. It’s the largest concentration of mammals on the planet, and it’s made up of only mothers and their babies. On our visit, we’ll meet a real-life Batwoman. Jessica Dreyer is a bat biologist who is studying how bats learn to be bats. Now… TO THE BAT CAVE! To see photos from our trip, as well videos of “bat rain” and the evening “batnado,” check out our blog at sciencepodcastforkids.com/blog. We’ll also have information about how you can visit Bracken Cave in person, with Bat Conservation International. This week, our Patreon members are getting exclusive audio bonus content from our interview with Jessica! Hear her describe what it’s like to go inside the cave, as she shares tons of other stunning bat facts. Pledge today at patreon.com/tumblepodcast. You’ll also get an ad-free feed, when you sign up at just $1/month!

This summer, Tumble went live!! and we want to share the science magic with all our listeners. In this episode, you’ll hear our favorite parts of our Back-to-School Science Splash Jam from the Scottish Rite Theater in Austin, Texas. Get ready for a sea star song written by listeners, jellyfish trivia, and amazing science questions from fans. A super huge thanks and shoutout to everyone who came to our events! If you’re curious about Tumble live events, email us at [email protected]. Our guests were SaulPaul, Elizabeth McQueen, and Juli Berwald. Sara and Michael Lentz recorded the Science Splash Jam. Thanks to our sponsors: The Headwaters School, Austin Family Magazine, Spare the Rock, Spoil the Child, and Listenwise. Our kid contestants were Adele, Liesel, and Finn. Our question askers were Amery, Amara, and Leela.

What if you could shrink your technology down to a size that’s 100,000 times smaller than the width of a human hair? It sounds like sci-fi, but it’s not. Romain Quidant shows us how he helped shrink an entire medical laboratory down to the size of a computer chip. The “lab on a chip” uses molecular mini-detectives to track down diseases hiding within a tiny drop of blood. We’ll find out how it works, and why a tiny particle could make a big difference for human health. To see a photo of Romain holding the lab on the chip, check out our blog at sciencepodcastforkids.com/blog. Tumble is brought to you with support from KiwiCo. KiwiCo is offering Tumble listeners the chance to try them for free - to redeem this offer and learn more about their projects for kids, visit kiwico.com/tumble. Love Tumble? Support us on Patreon! All you need to do is go to patreon.com/tumblepodcast and sign up to pledge. Listener support makes a HUGE difference in helping us make the show. We’d also love to give you a shoutout on our next episode!

Meet 11-year-old Sarah Galvani-Townsend! She’s our first ever kid science expert. In many ways, Sarah is a regular kid who loves science. But she’s got an unusual hobby. Sarah tells us why studying dogs and rabies is one of her favorite extracurricular activities, and how she translates “science language” into “kid language.” To read Sarah’s paper and find out more about Science Journal for Kids, visit our blog at sciencepodcastforkids.org/blog. The original paper is called “One Health approach to cost-effective rabies control in India” and the lead author is Meagan C. Fitzpatrick. Tumble is brought to you with support from KiwiCo. KiwiCo is offering Tumble listeners the chance to try them for free - to redeem this offer & learn more about their projects for kids, visit kiwico.com/tumble Love Tumble? Support us on Patreon! Go to patreon.com/tumblepodcast and pledge today. Even just a $1/month means a lot to us! We love hearing from you. Email us your questions, comments and feedback at [email protected].

It’s the tale of an epic science adventure. It’s the drama of the hunt for a dragon… a snapdragon! This isn’t the kind of dragon that breathes fire. It’s a flower! And biologists have been hunting for them every summer, in an ongoing quest to understand how species evolve and separate. We tag along with biologist Carina Baskett on her very first day of the snapdragon hunt, in the Pyrenees mountains of Spain. Join us as we get excited about “fieldwork” - one of the coolest (and most adventurous) parts of the scientific process! You can see photos from the snapdragon hunt and learn about fieldwork all over the world, on our blog. We’re doing it live! Check out Tumble’s live events coming up in August, on our website. Tumble is brought to you with help from KIND Snacks. Complete offer details are available at: https://www.kindsnacks.com/kidsoffer Our Patrons make a WORLD of difference to us! Pledge to support at patreon.com/tumblepodcast. Rewards include ad-free episodes, free educational materials, chances to appear on the show, and more.

Joe Hanson is a scientist who hosts PBS Digital Studio’s It’s Okay to Be Smart and Hot Mess, a new YouTube show about climate change. He’s been a longtime friend of Tumble’s, so it was a no-brainer to ask him to help answer listener questions! Joe tells us why penguins can’t fly, how animals breathe underwater, what’s beyond the universe, and why our teeth get wobbly and fall out. Plus, find out what we think Tumble: Aquatic Edition would sound like! Watch some of our favorite of Joe’s videos on our website: sciencepodcastforkids.com/blog. Don’t forget, a great way to support Tumble is to pledge on Patreon. You can also tell five friends about the show! Either way, we’ll love you. We’ve got a special offer for you to try KIND Kids Bars! Go to KindSnacks.com/science and enter code SCIENCE at checkout to receive 20% off of your order of KIND Kids Bars.

Got a long trip coming up? Turn it into an adventure into outer space! Marshall’s headed out on an intergalactic journey. He’s lined up the best episodes on astronomy for your road trip! See what it’s like to spend a year on Mars, take a wild ride through the solar system, find out if it’s possible to ship Co2 off our planet, search for alien life, and investigate black holes with the world’s top black hole hunter. You’ll be there in no time when time is flying by at warp speed! When we get to 150 Patrons, Marshall will do something very silly. So if you can, please pledge today: patreon.com/tumblepodcast Hope you’re having a great summer! We’ll be back with new episodes soon.

**Recommended for listeners age 8 and up** This week, we’re presenting a new show from our friends at Gen Z Media! It’s called Young Ben Franklin, and it’s a mystery-adventure series about the 14 year old kid who went on to become one of America’s most famous founding fathers. If you enjoy this show, you can find more like it at bestrobotever.com. Subscribe at Apple Podcasts or wherever you listen to podcasts, so that you won’t miss an episode of Young Ben Franklin. The full series premiers on July 4. Independence Day! Younger listeners might want to skip this story, due to some dramatic situations and language. We’ll be back with more Tumble soon. Don’t forget, we’re in the middle of our Patreon pledge drive! Your support makes our show possible. Not kidding! If you value what we do, please consider making a donation at patreon.com/tumblepodcast. The first 10 fans to pledge will receive a Detective Dot megapack! Want another option? Review us on Apple Podcasts. It really helps other people find our show!

This week, we’re taking you to visit one of most powerful computers in the world! It’s called MareNostrum 4, and it’s housed in a former chapel in Barcelona, Spain. We’ll find out how scientists are using supercomputers to tackle some of the world’s biggest problems. Researchers Eduard Porta and Claudia Rosas explain what it’s like to work with one of the fastest machines in the world. See photos from Lindsay’s visit to MareNostrum 4, and learn more about supercomputers on our blog. It’s the best time ever to support Tumble on Patreon! For the first ten fans who pledge $5 or more to our Patreon campaign, you’ll receive a Detective Dot megapack, along with all of our regular rewards. Check out Detective Dot here: https://www.detectivedot.org/ Then, pledge at patreon.com/tumblepodcast Don’t forget, to leave us a review on Apple Podcasts! It really helps other people find out about our podcast.

You’ve never heard of a summer camp like this before. It’s a science camp, but the campers ARE the science! Imagine playing volleyball with electrode helmets, going to bed attached to sleep machines, and having scientists study popsicles made of your spit (“spitsicles”). We talk to the scientist who started Sleep Camp, a study that’s been going on for over 30 years. Join us as we learn what Sleep Camp has taught us about why sleep is so important for kids and teens. Our question from JoJo is, “Why do we need sleep?” Find out more about the science of sleep on our [blog post](http:// http://www.sciencepodcastforkids.com/single-post/2018/05/17/The-Crazy-Science-of-Sleep) about the Sleep Camp Experiment. And check out our NEW TRAVEL BLOG! Tumble Travels is written for both kids and adults. Follow our adventures on Instagram, too! This episode features music (about sleep science!) from The Pop Ups. Check out their new album, GIANTS OF SCIENCE, with songs about science and innovation. If you’re eager to gear up for summer with more great podcasts for kids, check out the Kids Listen app at app.kidslisten.org! It’s recently been approved by Common Sense Media, and you can find summer-themed episodes from great shows like Book Club for Kids and Buttons & Figs! Don’t forget - Your support on Patreon means EVERYTHING to us. Get a shoutout on the blog, receive special opportunities to be on the show, and get access to all our educational materials.

What would happen if our Moon suddenly disappeared? Would we still have tides? It turns out that the Moon has a much bigger influence on Earth than you might think. Without the Moon, life as we know it would not exist! Rocket scientist Miquel Sureda explains what happened before the Moon existed, and how we know that the Moon is slowly moving away from us. Plus, we have a special treat for you - we made up a story about the Moon’s disappearance with our friends from What If World! For more information and resources about the science in this episode, check out our blog post. If you love Tumble, please consider pledging to our Patreon campaign. It makes a HUGE difference for us! Have you written a review on iTunes yet? This also helps more people find our show! Looking for more podcasts for kids, including What If World? Listen and discover on the Kids Listen app, a podcast listening app designed just for kids!

For Earth Day, we’re discovering how the tiny, adorable pika is helping scientists study climate change! Temperatures in their mountain habitat are getting warmer, and rain and snow isn’t as predictable as it used to be. Scientists have discovered that the number of pikas in certain areas are shrinking – or even disappearing. But some populations are doing just fine. A scientist named Pika Jo wants to find out why. An unexpected disaster leads her to a surprising discovery. To find out more about pikas and climate change, check out our blog at sciencepodcastforkids.com/blog! Has Tumble contributed something meaningful to your family? Please consider pledging to our Patreon campaign at patreon.com/tumblepodcast. It makes a huge difference in making it possible for us to do the show, and we’re planning even more awesome stuff for the future! Our Patrons are the first to know - and, you get access to all the educational materials in our teacher store! Pledge today. Want more Earth Day podcasts? Check out eco-themed episodes from our Kids Listen friends What If World, Ear Snacks, Cool Facts about Animals, Little Stories for Tiny People, and Wow in the World! Find them on the Kids Listen app at app.kidslisten.org.

What happens when a Brownie Troop goes to a weather balloon launch? One Brownie guesses that they’ll make contact with unicorns in the sky. Atmospheric scientist Gary Morris shows us what it takes to launch the biggest balloon you’ve ever seen to the very top of Earth’s atmosphere. Along the way, we’ll learn why weather balloons are the best way to find out about air pollution. And who knows? Maybe we’ll discover unicorns, too! This story came together when a Brownie troop leader emailed Tumble to see if we could do an activity with the girls. We’re always open to new experiences, so don’t hesitate to reach out to us at [email protected]. Do you love what we do, and want to make sure there’s more episodes of Tumble forevermore? Support us on Patreon at patreon.com/tumblepodcast. Each pledge makes a HUGE difference to us, and we really appreciate it! Plus, you get sweet rewards - like access to our entire catalog of educational resources! To learn more about Tumble, visit our website at tumblepodcast.com. Or, you could swing by bestrobotever.com and find our podcast friends from Gen Z Media! They have great audio fiction like Mayan Crystal, The Alien Adventures of Finn Caspian, and more.

This is #2 in a series on dinosaur coprolites, AKA fossilized feces! In the 1800’s, Mary Anning was known as the best fossil hunter in England. She made many great discoveries, including dinosaur poop. With help from our friend Kidosaurus and children’s science historian Melanie Keene, we dig into Mary Anning’s story and her place in the history of women in science. After you listen to this episode, check out our blog at sciencepodcastforkids.com/blog for books about Mary Anning and an amazing website where you can explore the stories of other pioneering female paleontologists. Find a new favorite and tell us why she’s awesome, at [email protected]! Make sure you listen to our first episode in the series, “Who Dung It?” featuring modern-day coprolite scientist Karen Chin. To hear more from Riley about dinosaurs, subscribe to Kidosaurus at kidosaurus.com. Or you could listen on the Kids Listen app and discover other great podcasts for kids as well! Want to support Tumble? Pledge to our Patreon campaign! It’s a huge part of how we keep the show going. Plus, you get awesome monthly rewards, like free access to everything in the teacher store when you pledge $5 a month! Go to patreon.com/tumblepodcast to pledge today.

Call it fossil feces, dinosaur dung, or preserved poo. This is the first of a two part series on dinosaur poop! We kick it off with the modern-day science of coprolites. Paleontologist Karen Chin shares how she cracked the case of a mysterious coprolite, and discovered a different dinosaur diet. STAY TUNED for the next episode in the series, about a pioneering female paleontologist and a very unusual family of scientists, who discovered that funny looking rocks were actually ancient dung. The Tumble Teacher Store is now open! Find curriculum packages, activities, graphic organizers, transcripts, and even music. Go to sciencepodcastforkids.com/materials to check it out. Want to support Tumble? Pledge to our Patreon campaign! It’s a huge part of how we keep the show going. Plus, you get awesome monthly rewards, like free access to everything in the teacher store when you pledge $5 a month! Go to patreon.com/tumblepodcast to pledge today. Oh, and here’s a new place you can find Tumble and three brand new podcasts for kids: bestrobotever.com Check out quiz show Pants on Fire, and fiction podcasts Six Minutes and The Mayan Crystal, from our partners at Gen Z!

Return of the mailbag! The Tumble inbox is filling up with questions, and Marshall scrambles to answer them while Lindsay relaxes with a glass of lemonade. We find out why rainbows don’t fall down, why naked mole rats are naked, whether you can sneeze with your eyes open, why we have dreams, and how scientists studied tickling with a tickle robot. Want to learn more (and see what naked mole rats look like)? Visit our blog at sciencepodcastforkids.com/blog. We’re on Instagram now! Follow us at @tumblepodcast for behind-the-scenes, cool science facts, and our travels in Europe. If you have questions you’d like us to answer, send them to [email protected]! Our podcast relies on your support. When you pledge $5 on Patreon, you’ll receive free access to all the materials on our teacher store, including activities, worksheets, transcripts, and ad-free episodes! Pledge now at patreon.com/tumblepodcast. Thanks for listening, and stay tuned for more stories of science discovery.

“How do sea stars grip onto rocks?” That’s what listener Chloe wants to know. To find out, we take a trip to an aquarium to see sea stars’ tiny tube feet in action, and call up sea star expert Chris Mah. What we learn is a surprising story of how scientists made a big mistake when it came to studying to sea stars’ spectacular grip - and how they finally got it right. There’s some amazing science behind these starry creatures! What’s your favorite animal fact? Can you find out how scientists know it’s true? Let us know what you discover by sending us an email, drawing, or recording to [email protected]. Tumble’s Teacher Store is coming! We’re getting NGSS-aligned materials ready for your homes and classrooms! Science activities, graphic organizers, lessons, transcripts, and more will be available this month. Patrons who pledge $5 or more will have access for FREE! Pledge today at www.patreon.com/tumblepodcast, or www.sciencepodcastforkids.com/materials to visit the store. Thanks for listening!

“Do plants feel pain?” Jude’s question leads us to stunning discoveries about what plants feel, what they hear, and even what they talk about! Biologist Heidi Appel reveals how scientists learned about plants’ inner lives, and tells us the story of how she discovered “listening” plants. You’ll never look at plants the same way again. What can YOU observe about your houseplants? How do they react to changes in light, water, or other variables? Tell us -- and send in your science questions -- at [email protected]. Want to learn more about plant communication? Check out our blog at www.sciencepodcastforkids.com. Tumble is brought to you with help from our sponsor, GoGoSqueeZ! Find these yummy, healthy snacks in the applesauce aisle. Tumble’s Teacher Store is coming! We’re getting NGSS-aligned materials ready for your homes and classrooms! Science activities, graphic organizers, lessons, transcripts, and more will be available starting February 1st. Patrons who pledge $5 or more will have access for FREE! Pledge today at www.patreon.com/tumblepodcast, or www.sciencepodcastforkids.com/materials to visit the store. Thanks for listening!

Meet Envirobot, a robotic eel who slithers along the surface of the water, seeking the source of water pollution. The future is here, and it's full of swimming robots! We meet members of the team behind Envirobot, Bezhad Bayat and Alessandro Crespi. They tell us what it takes to turn a swimming animal into a robot - the twists, the turns, the technology, and the math. If you could design a robot based on a swimming animal, what would it be and why? What would it do? We want to hear your ideas, and see your designs! Email us at [email protected]. Check out a video of Envirobot and terrifying photos of lampreys on our blog, at sciencepodcastforkids.com! Looking for transcripts of our episodes? They're now available at http://www.sciencepodcastforkids.com/materials. They're 50% off through the New Year! Want to support Tumble and get access to ALL our educational materials, plus special opportunities to be on the show? Pledge to our Patreon campaign at patreon.com/tumblepodcast. Happy Holidays and have a great New Year to all our listeners!!

"How are minerals made?" "What makes rocks sparkly?" Mary Lou and Tilly are curious about minerals, the chemical compounds that make up rocks! Get ready for a behind-the-scenes tour of the Field Museum in Chicago! Collections manager Jim Holstein opens cabinets containing some of the most exceptional minerals in the world. Find out how scientists have classified minerals for hundreds of years, and why some minerals glow in the dark. Do you have a rock collection? Or any kind of collection? How do you organize, or "classify" it? Check out photos and videos from our tour on the blog at sciencepodcastforkids.com Want to support Tumble, and hear your name on the show? Pledge on our Patreon campaign at patreon.com/tumblepodcast! We LOVE our supporters.

“Could we ship Earth’s extra carbon dioxide to Mars?” Our listener Ilan has come up with a brilliant plan to stop climate change in its tracks, and make Mars a place we can live - AT THE SAME TIME. Your intrepid Tumble hosts attempt to lift his idea off the ground, with help from Czech environmental scientist Kristina Zackuciova, and NASA astrophysicist Scott Guzewich. Join us, to find out how a scientific journey starts - and whether Ilan has discovered how to save two worlds with one simple plan. Tumble is brought to you with help from Homer. Try Homer, the only learn to read method powered by your child’s interests and shown to increase early reading scores by 74%. As a Tumble fan, you’ll get two months free by visiting learnwithhomer.com/tumble. Wonderbly supports Tumble too! Get a preview of a book starring your child (great for gifts, too!) at www.wonderbly.com. Enter TUMBLE at checkout to get 15% off your order! Want to support Tumble yourself? Pledge at patreon.com/tumblepodcast. At the $5 level, we’ll shoutout your child on the show, and you’ll get access to our growing folder of educational resources - along with an AD-FREE version of the show! Are you using Apple Podcasts right now? Great news! It’s easier than ever to write a review of Tumble. Every positive reviews sends a rainbow directly into our hearts (don’t worry, it’s healthy). Check out resources on our website at sciencepodcastforkids.com, and email us YOUR questions at [email protected]

It's a mail bag episode! While Lindsay is away, Marshall is going through a bunch of listener questions and answering them as best he can. Do monkeys get ice cream headaches? Why is Play-doh so salty? Listen to find out the answer to this and more in this special episode of Tumble. If you want to submit a question for Marshall & Lindsay to answer, go visit our website at http://sciencepodcastforkids.com.

Why do people believe in ghosts? And can science ever prove that they don’t exist? We take a road trip with Dennis Waskul, a sociologist who traveled to graveyards and “haunted” houses to hear ghost stories, from the people who lived them. He wanted to find out why 50% of Americans believe in ghosts. What he discovered might spook you - in a good way! (Note: This episode is NOT scary.)

We often talk about how there are so many great kid podcasts out there to discover. Now, we're bringing those podcasts directly to you, in this sampler pack of a bonus episode! Find these podcasts and more at applepodcasts.com/kids You'll hear some of our favorite podcasts for kids. We really believe that listening to podcasts for kids with our son has brought something truly special into our lives, that we couldn't get with any other type of media. We've heard from listeners that Tumble has turned trips to the park into dinosaur fossil hunts, fort-building into a submarine adventure, and boring car rides into a time for interesting conversation. What have podcasts done for your family? Tell us at [email protected]. Enjoy!

Children are the best language learners, says psycholinguist Evan Kidd. But how do children learn languages so easily, and why is learning another language so hard when you're an adult? It's something we've been wondering since we moved to Barcelona, Spain this summer. Evan Kidd shares his quest to put together the complex puzzle of how humans learn language. What he's discovered might change the way you think about your own native tongue. To join us on our adventures in Barcelona, plus get access to an ad-free version of the show and educational materials, pledge at patreon.com/tumblepodcast Listen to Tumble on the Kids Listen app! app.kidslisten.org If you have any questions about science that you'd like Lindsay and Marshall to help answer, go to our website - www.sciencepodcastforkids.com - and use the contact form. While you're there, you can also find a blog with lots of great resources about this episode.

Where does electricity come from? That's what listener Ati wants to know. Lindsay and Marshall get on the case of a massive blackout that plunged 50 million people into darkness Scientist and engineer Mike Legatt helps us solve the mystery. We made a cool electric grid scavenger hunt for this episode that you can download for free on our Patreon Page! Subscribe at the $5 level (or higher!) to find more great activities like this one. You can also listen to Tumble on the BRAND NEW Kids Listen App! If you have any questions about science that you'd like Lindsay and Marshall to help answer, go to our website - www.sciencepodcastforkids.com - and use the contact form. While you're there, you can also find a blog with lots of great resources about this episode.

Do solar systems move? That’s what Levan wants to know. NASA astronomer Stefanie Milam shares how technology has allowed humans to see the course our solar system has charted through space – and how a powerful new telescope will widen our view even more. Want to learn more, and see photos of the James Webb Space Telescope? Check out our blog at sciencepodcastforkids.com. Help us take Tumble to the next level (outer space?)! Support the podcast you love at on our Patreon campaign at patreon.com/tumblepodcast.

How does our brain remember things? Neuroscientist Andre Fenton found that question has no easy answers. Andre has spent years experimenting with PKMZeta, a tiny molecule he believes is the key to forming memories. But what if he’s wrong? This is a personal story of the scientific process, and the bumps along the journey that lead to knowledge. Welcome back to Season 3 of Tumble! We're so excited to be back with all new episodes - from Barcelona, Spain! To kick it off right, we're doing a Patreon pledge drive to get to 100 Patrons! You can donate any amount to vote on where we'll go in Barcelona and what we'll share with you on our Patreon blog. To pledge, go to patreon.com/tumblepodcast. Send your questions, drawings, and recordings to [email protected]

Tumble will be back with all new episodes this fall! Make sure you're subscribed to Tumble to get the first episode on September 8. This season, expect more great stories about science discovery, from around the world! Thanks to listeners Kinnari, Ash, Liesel, Caroline, and Rosemary for helping us record our message. Have a science question? Want to send us a drawing? Know of a scientist we should interview? Email us at [email protected]. To support the show, go to patreon.com/tumblepodcast and pledge! Your donation helps make Tumble possible.

Everybody poops. But why? To find out, science writer Mary Roach takes us on a journey into the alimentary canal - that's the tube that runs from our mouth to our rectum. Along the way, we learn about pooping in space, and how someone else's poop might one day save your life! Have you been looking for an easy way to find more great podcasts for kids like Tumble? Or maybe you want a place for your kids to listen and discover podcasts on their own. We have great news for you! With Kids Listen, we’ve made the first ever listening app for kids at app.kidslisten.org. Go there and you’ll find all kinds of awesome shows by some of our friends like Brains On, Stories Podcast, and NPR’s new podcast for kids, Wow in the World. Check it out! Thanks to everyone who listened this season! Make sure to STAY SUBSCRIBED so you can get updates from us over the summer - especially on our journey to Barcelona! We're already getting started on episodes for the fall. Send us your science questions, your drawings and recordings! Do you live in Europe? Do you know of any cool scientists and science going on that we should check out? Let us know! We're excited to explore! As always, leave us a review on iTunes if you like the show. Email us at [email protected], and check out our blog at sciencepodcastforkids.com. To support the show and get educational materials as well as an ad-free version of the show, pledge at patreon.com/tumblepodcast. Thanks for listening!

Dinosaurs didn’t roar. What?! Paleontologist Julia Clarke has been uncovering clues to how dinosaurs sounded, in ancient bird fossils from Antarctica. She shares the story of her groundbreaking fossil find that revealed the surprising sounds of the dinosaur world! Come on an expedition to Antarctica and into Julia’s lab on her quest for discovery. Now is the time to send us your science questions! Record your name, age, and your question. Tell us what you think the answer is, and how scientists might find out! Then email it to [email protected]. Want an ad-free version of Tumble? It’s only $1 each month. Pledge on Patreon to get access to this special podcast feed, including Marshall’s original music. Let us know how you use Tumble. Send us your questions and drawings! Don’t forget to subscribe and leave us a review on Apple Podcasts or Stitcher. Thanks for listening!

Are we alone in the universe, or are there other life forms out there? That's what Daniel, a listener from New Zealand, wants to know. Scientists have been searching for the answer with a surprising tool: radio. But this isn't any old radio. Seth Shostak, senior astronomer at the SETI Institute, shares the story of how the search for intelligent life got started, and where it's headed. Are you a teacher or homeschooling parent? Tell us how you use Tumble! Email us at [email protected]. We love hearing from you! Want an ad-free version of Tumble? It’s only $1 each month. Pledge on Patreon to get access to this special podcast feed, including Marshall’s original music. Let us know how you use Tumble. Send us your questions and drawings! Don’t forget to subscribe and leave us a review on Apple Podcasts or Stitcher. Thanks for listening!

Brothers Ian, Sam, and Eli want to know, “How do vaccines keep our bodies healthy?” We meet two scientists, Omar Khan and Jasdave Chahal, who have teamed up to tackle the world’s most dangerous diseases with a new technique for developing vaccines. They tell the story of how they came together in a quest to battle biological “ninjas” that want to invade our bodies and make us sick. Are you a teacher or homeschooling parent? Tell us how you use Tumble! Email us at [email protected]. We love hearing from you! Want an ad-free version of Tumble? It’s only $1 each month. Pledge on Patreon to get access to this special podcast feed, including Marshall’s original music. Let us know how you use Tumble. Send us your questions and drawings! Don’t forget to subscribe and leave us a review on Apple Podcasts or Stitcher. Thanks for listening!

Who is the oldest primate, and is it our great-great-great grandfather? Listener Elena's question takes us into a laboratory chock full of fossils, and brings us back to the impact that killed most of the dinosaurs. Anthropologist Chris Kirk introduces us to our very ancient - and very tiny - ancestors. Visit our blog at tumblepodcast.com to see photos of Rooneyia and Mahgarita, as well as a tour of the Vertebrate Paleontology Lab! We have resources to get started with your own fossil hunt. If you've been inspired to fossil hunt, let us know what you found! Are you a teacher or homeschooling parent? Tell us how you use Tumble! Email us at [email protected]. We love hearing from you! Want an ad-free version of Tumble? It’s only $1 each month. Pledge on Patreon to get access to this special podcast feed, including Marshall’s original music. Let us know how you use Tumble. Send us your questions and drawings! Don’t forget to subscribe and leave us a review on Apple Podcasts or Stitcher. Thanks for listening!

Wonder why a cat always lands on its feet? It's a question that stumped scientists for over a hundred years. Some suspected that mischievous cats were breaking the laws of physics! Was it the catnip? Or was it a mystery of physics? Physicist Greg Gbur helps us break the case... with the first ever cat video. Check out the original flipping cat photos and film, as well as a video of cats weightless in zero gravity (!!) on our blog at sciencepodcastforkids.com. You'll also find visual explanations from Greg Gbur and YouTube channel Smarter Every Day. Want an ad-free version of Tumble? It’s only $1 each month. Pledge on Patreon to get access to this special podcast feed, including Marshall’s original music. Let us know how you use Tumble. Send us your questions and drawings! Don’t forget to subscribe and leave us a review on iTunes or Stitcher. Thanks for listening!

Imagine this: You’re in the middle of the Gulf of Mexico with a big fish on the line. But suddenly, you’re surrounded by whale sharks, the biggest fish in the world. What do you do?! If you’re a scientist, you get curious. Marine biologist Rafael de la Parra tells us how and why he got a headcount of the biggest whale shark party ever seen. We adopted a whale shark! Send your suggestions for MXA-130’s new name to [email protected]. Check out our blog to see photos of her, find out about her favorite hangs and hobbies, and learn how to adopt your own whale shark (with none of the hassle of living with one), at sciencepodcastforkids.com. Want an ad-free version of Tumble? It’s only $1 each month. Pledge on Patreon to get access to this special podcast feed, including Marshall’s original music. Don’t forget to share the magic of podcasts with someone you know. Tell us what you suggested by tagging @tumblecast on Twitter, and use the hashtag TRYPOD. For more kids podcasts, check out kidslisten.org/members. Let us know how you use Tumble. Send us your questions and drawings! Don’t forget to subscribe and leave us a review on iTunes or Stitcher. Thanks for listening!

What would you bring on a trip to Mars? That’s a question Sheyna Gifford had to ask herself when she packed to live on Mars for a year. Wait, what?! We find out about a NASA experiment on top of a volcano that’s getting astronauts prepared for a real-life mission to Mars. Learn how to apply for a trip to Mars - in sim or in space - on our blog at tumblepodcast.com This month, we are asking listeners to recommend podcasts to friends who have not yet discovered them! For #trypod, check out kidslisten.org/members for plenty of great podcasts for kids! For an ad-free version of the podcast, educational materials, a Tumble t-shirt, and a shoutout on the show, support us at patreon.com/tumblepodcast Let us know how you use Tumble. Send us your questions and drawings! Email us at [email protected] Don’t forget to subscribe and leave us a review on iTunes or Stitcher. Thanks for listening!

The People of the Snow with Kelly Elder Why does it snow, where does it snow, and why are snowflakes not the same size or shape? We jump into a pile of snow questions, and find a very different kind of science in the snowy Arctic. Kelly Elder, a snow hydrologist, tells the story of how scientists work with the Inuit people to understand how snow is changing in a warming world. More information about this episode on our blog at tumblepodcast.com For an ad-free version of the podcast, educational materials, a Tumble t-shirt, and a shoutout on the show, support us at patreon.com/tumblepodcast Let us know how you use Tumble. Send us your questions and drawings! Email us at [email protected] Don’t forget to subscribe and leave us a review on iTunes or Stitcher. Thanks for listening!

Something is living in your showerhead. Scientists need your help to figure out what it is, and why it’s there. Biologist Noah Fierer is enlisting people around the country to search out the tiny, microscopic life in showers. Find out what happens when Lindsay and Marshall sign up as citizen scientists, and turn their bathroom into a lab. To find out more about the Showerhead Microbiome Project, visit http://robdunnlab.com/projects/showerheads For more citizen science projects you can participate in, check out https://scistarter.com More information about this episode on our blog at tumblepodcast.com For educational materials, support us at patreon.com/tumblepodcast or email us at [email protected] We want your questions and drawings! What do you think lives in your showerhead? Don’t forget to subscribe and leave us a review on iTunes or Stitcher. Thanks for listening!

We dive into the gross side of science with Anna Rothschild, host of the PBS/NOVA series Gross Science! Anna tells us how a robot named Vomiting Larry helped scientists discover how to stop the spread of a potentially deadly sickness. Plus, fourth graders tell us what they think is gross, and we learn why talking about poop can be important for your health. What do YOU think is gross? What does Vomiting Larry look like? Send your questions and drawings to [email protected], or use our contact form on our website! Check out our blog post on this episode for kids, and a special lesson plan for teachers from Ms. Gustafson on our blog at www.sciencepodcastforkids.com. Join us on Patreon for more educational materials, music downloads, and extras from our interviews! www.patreon.com/tumblepodcast Don’t forget to subscribe and leave us a review on iTunes or Stitcher. Thanks for listening!