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Brains On! Science podcast for kids: Daily Summaries Delivered
by Brains On Universe
Brains On!® is a science podcast for curious kids and adults from Brains On Universe. Each week, a different kid co-host joins Molly Bloom to find answers to fascinating questions about the world sent in by listeners. Like, do dogs know they’re dogs? Or, why do feet stink? Plus, we have mystery sounds for you to guess, songs for you to dance to, and lots of facts -- all checked by experts.
Latest Episodes
The most recent episodes — sign up to get AI-powered summaries of each one.
- Yesterday29 min
How do walkie talkies work?
Walkie talkies are cool tech with a cool name. In today's episode we find out how can one little box let you talk to somebody miles away. Even though we have cell phones that can connect to places around the world, walkie talkies are still quite useful. You can also test your walkie talkie lingo in a special game show. And, we get a visit from our favorite dancing CEO,Gungador, who needs Molly and co-host Sebastian's help while he attends a meeting with the Brains On Dog Advisory Council. All that plus, a brand new mystery sound. Over and out! Brains On is powered by YOU. We are an independent podcast that depends on listener subscriptions and donations to make our shows. If you're interested in helping, join Smarty Pass. As a thank you, we'll give you access to ad-free versions of all the Brains On Universe shows, virtual hangouts, discounts on merch and so much more. Heat to smartypass.org to find out more. Click here for a transcript of this episode.
- 1 weeks ago29 min
Hoax Hunters take on the Fresno Nightcrawler
Marc and Sanden are back as the Hoax Hunters! This time they look at the case of the Fresno Nightcrawler. In 2007 a man’s security camera recorded something strange outside his house. It looked like sweatpants out for a walk by themselves, with no humans around. Creepy? Kind of. Unexplained? Very. Join the Hoax bros as they explore this event and learn how it inspired artists, musicians, even the tourist board of Fresno, to embrace the weird stuff around us. Want to support more hoax hunting missions? Join Smarty Pass! That's where you can get ad-free episodes of all the Brains On Universe shows, plus special bonus content, virtual hangouts, discounts on merch and more! Go to smartypass.org to sign up. Thanks! Click here for a transcript of this episode.
- 2 weeks ago34 min
Why are brains so squishy?
Our brains are amazing machines, but they are also very delicate. We have to wear helmets when we bike, skate, or do other activities where we might bang our skulls. Why is the brain so sensitive? Turns out, it’s a soft blob a lot like tofu, but that softness lets it do some pretty important things. Join Molly and co-host Penny as they learn about our wonderful, squishy brains. Plus, Dwayne the Brain joins us and we’ve got a brand new Mystery Sound. Brains On is an independent podcast, which means we rely on listener support to make all our shows. You can help by joining Smarty Pass, where you'll get ad-free episodes, bonus content, online hangouts, discounts on merch and more! SmartyPass.org You can find a transcript of this episode here.
- 3 weeks ago34 min
How do oysters make pearls?
Pearls are shiny little things that look great on a bracelet or necklace. They’re made by shell-dwelling creatures called oysters, but how? Dive in as Molly and co-host Katherine explore the underwater world of oysters and other mollusks. They’ll talk with researcher Priya Shukla and producer Menaka Wilhelm to learn how these squishy creatures make pretty pearls. Plus, a game show and a Mystery Sound! Want to support the show? Join Smarty Pass to listen to ad-free episodes or donate! Click here for a transcript of this episode.
- 4 weeks ago28 min
Why do mosquitoes bite?
In this episode, we're tackling all the mosquito questions that have been bugging our listeners. Why do they bite? Why do the bites itch? Is scratching them a good idea? Why do some people seem to be more delicious to mosquitoes? How can we keep them away from us? And are mosquitoes good for the world? The Hoax Hunters also make another hoax-tastic appearance. Want to support the show? Join Smarty Pass for ad-free episodes, hangouts, discounts and more! Want to see Brains On live?!? We are probably coming to a city near you. For a complete list of shows and links to tickets head to our events page. Fall 2026 show announcement coming soon!
- Jun 23, 202629 min
How do lightbulbs work?
We use lightbulbs everyday, but how often do we stop to think about how they work? These genius little inventions are packed with cool science. Molly and co-host Maya will explain how they work step by step. Plus we’ll hear your suggestions for what to shout when you have a bright idea. Oh, and a new Mystery Sound to light up your life. Enjoy! Want to see Brains On live?!? We are probably coming to a city near you. For a complete list of shows and links to tickets head to our events page. Fall 2026 show announcement coming soon! Click here for a transcript of this episode.
- Jun 16, 202635 min
Crystals: More than just shiny rocks
This episode shines a light on crystals, and they’re sparkling right back at us! We’ll zoom way in on a diamond to understand the structure that makes crystals special, and hear about some unexpected crystals, too (hint: chocolate chip cookies contain a few different crystals!). Then, we take a look at how crystals form and get their cool colors. Plus, Marc and Sanden hunt down a hoax about Mesoamerican crystal skulls. Want to support the show? Join Smarty Pass to listen to ad-free episodes or donate! Want to see Brains On live?!? We are probably coming to a city near you. For a complete list of shows and links to tickets head to our events page. Fall 2026 show announcement coming soon! June 20 - Southern Theater, Columbus, OH June 21 - Turner Hall Ballroom, Milwaukee, WI
- Jun 9, 202640 min
Brains On Presents: Smash Boom Best - Slime vs Slinkies
We will be back next week with a new episode! This week we have an episode from our sister show Smash Boom Best: Slime vs Slinkies!Set out these two playthings on a table and see which one your kid grabs first. Is it the gooey, squishy, surprising slime? Or the springy, wiggly, wonderous slinky? Both are fun, one will triumph! Smooshing the competition for Team Slime, it’s RadioLab host Latif Nasser. And stretching toward victory for Team Slinky, it’s podcast producer Hans Buetow. Listen to see which terrific toy takes the top prize. And don’t forget to vote for your favorite at smashboom.org. Click here to read a transcript of this episode. Want to support the show? Join Smarty Pass to listen to ad-free episodes or donate!
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About Brains On! Science podcast for kids
Brains On!® is a science podcast for curious kids and adults from Brains On Universe. Each week, a different kid co-host joins Molly Bloom to find answers to fascinating questions about the world sent in by listeners. Like, do dogs know they’re dogs? Or, why do feet stink? Plus, we have mystery sounds for you to guess, songs for you to dance to, and lots of facts -- all checked by experts.
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