

Brains On! Science podcast for kids
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.
Episodes
Mentioned books

Oct 21, 2025 • 34min
Do fidget toys really help people focus?
Dr. Julie Schweitzer, a renowned neuroscientist from the UC Davis MIND Institute, dives into the science of fidgeting, exploring its role in focus and self-regulation. She explains how fidget toys can help some kids, especially those with ADHD, but may distract others. The discussion touches on the history of fidgeting, from baoding balls to modern toys, and emphasizes that personal preference matters when selecting fidgets. Dr. Schweitzer also provides practical tips for using fidgets effectively in classrooms.

Oct 8, 2025 • 8min
We’re back! Brains On Universe has a new headquarters
We’re back! We’ve officially moved into our new headquarters! Come unpack with us and get a tour while we fill you in on some big news. Plus, new episodes of Brains On coming later this month and new Smash Boom and Forever Ago after that. If you want to support the show or drop us a line, head to brainson.org. The best way to keep us going is to join Smarty Pass or donate here: https://brainson.supercast.com. Thank you!See omnystudio.com/listener for privacy information.

16 snips
Jun 11, 2025 • 3min
A big update about the Brains On Universe
Exciting changes are on the horizon as they prepare to relocate their headquarters to a bigger and better space. While new episodes are temporarily on hold, they discuss the fun of moving, including humorous character interactions. Listeners are invited to join live shows in Dallas and Princeton for some engaging science fun. Plus, fans can look forward to six new bathrooms and ten water slides in the new HQ, along with a fix for the long-suffering doorbell. Big updates and laughs await!

Jun 3, 2025 • 35min
The life of a NASA astronaut
NASA astronaut Kayla Barron, who lived on the International Space Station for 177 days, shares her incredible journey in space. She dives into the rigorous astronaut training and the collaborative spirit behind missions. Listeners will be amused by discussions about unique challenges in space, like adapting to zero gravity and the evolution of astronaut food. Plus, there's a humorous take on a space suit with a flatulence extractor and insights into how astronauts maintain breathable air. This cosmic conversation is both enlightening and fun!

15 snips
May 27, 2025 • 28min
How do weather stations predict the weather?
Ever wondered how they predict the weather? This fun exploration dives into the fascinating tools used at weather stations, from radar to satellites. You'll laugh at the antics of geese on radar and learn about imaginative apps that mix forecasts with positive affirmations. Discover how weather balloons and ocean buoys collect vital data, all while engaging in a playful Mystery Sound challenge. It's a captivating journey into the science of weather prediction that's perfect for young curious minds!

May 20, 2025 • 28min
Tree, Myself and I: All about our leafy green friends
Brains On is a non-profit public radio program. There are lots of ways to support the show:Support the podcast with donation | Subscribe to Smarty Pass for ad-free episodes and bonus content | Buy our book and merch | Come to our live shows | Get the newsletter for parents | Find teacher resourcesTrees are the strong, silent type but that doesn’t mean they can’t communicate. In this episode we’ll explore how trees send each other messages above ground and below. Plus we’ll learn how a seed goes from a tiny sapling to a towering plant. We find out some fruit facts and hear an all new Mystery Sound. This episode was originally published on Jul 16, 2019. This episode is sponsored by:Indeed.com/brainson - Receive a $75 sponsored job creditExperience Disney's Snow White, only in theaters March 21. Rated PG, parental guidance suggested.See omnystudio.com/listener for privacy information.

May 13, 2025 • 32min
Body Bonanza: Bruises, scars and Band-Aids
Dive into the colorful world of bruises and healing! The hosts share hilarious anecdotes about injuries and weave science into storytelling, explaining how bruises change colors. Discover the magic of Band-Aids, as they learn from a pediatrician about the healing process and the role of collagen. Enjoy a fun mystery sound challenge, and celebrate the creativity of young listeners who contribute to the show's vibrant community. It's a playful blend of laughs, learning, and curiosity around our bodies!

May 12, 2025 • 2min
Smarty Pass Sneak Peek: Life is Poopiful
Oh no! An awful spell has put Ruby, Rosie, and Anna in a poopiful situation at Brains On HQ! It looks like the only way to save them is with a quick game with Molly Bloom. Grab your Smarty Pass to hear how a change of verb can leave things poopiful.See omnystudio.com/listener for privacy information.

May 6, 2025 • 38min
Are birds dinosaurs?
Jingmai O’Connor, an associate curator of fossil reptiles at the Field Museum, dives into the amazing world of birds as modern-day dinosaurs. She shares thrilling insights about how creatures like chickens are descendants of T-Rex. The conversation reveals key fossil discoveries and amusing anecdotes that make evolution accessible to kids. Plus, listeners get to play along in a fun guessing game and explore the fascinating connections between various species, highlighting how understanding our wildlife can be both exciting and educational!

19 snips
Mar 11, 2025 • 32min
Trends: How do they start?
Sanden Totten, an expert on the Diffusion of Innovation Theory, joins the discussion to unravel how trends begin and spread. He explains the role of early adopters and their influence on social phenomena, likening them to social media influencers. The hosts add humor with quirky ideas like 'fruit pants' while exploring how trends in animal behavior parallel human fads. Personal anecdotes and listener contributions highlight the playful nature of trendsetting, making it clear that trends shape connections and identities across cultures.