Brains On! Science podcast for kids

American Public Media

Brains On!® is a science podcast for curious kids and adults from American Public Media. 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.

  • 23 minutes 55 seconds
    Why do we have Daylight Saving Time?

    Every spring we set our clocks one hour forward. Every fall we move them one hour back. It’s a strange ritual when you think about it, so why do we do it? Join Molly and co-host Ava as they explore the seasons and why days are shorter in the winter and longer in the summer. We’ll hear about the history of Day Light Saving and play a game. And it’s always time for a Mystery Sound! So set an alarm so you don’t forget to tune in to this episode!

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch 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. More shows announced soon!

    March 7 - Turner Hall Ballroom, Milwaukee, WI

    March 8 - Fitzgerald Theater, St. Paul, MN

    March 28 - Center Stage, Atlanta, GA

    March 29 - Amaturo Theater, Fort Lauderdale, FL

    April 11 - Walker Theater, Chattanooga, TN

    April 12 - Carolina Theater, Durham, NC

    April 25 - Marines Memorial, San Francisco, CA

    April 26 - Newmark Theater, Portland, OR

    May 30 - Electric City, Buffalo, NY

    May 31 - Royal Theatre, Toronto, ON

    Click here for a transcript of this episode.

    See omnystudio.com/listener for privacy information.

    3 March 2026, 8:30 am
  • 1 minute 4 seconds
    New Brains On tour dates added: St. Paul, Atlanta, Portland -- and more!

    Exciting news! We’ve announced a bunch of new tour stops for this spring! Learn more about the show and get tickets here!

    Mar 7............MILWAUKEE

    Mar 8..................ST PAUL

    Mar 28..............ATLANTA

    Mar 29.....FT LAUDERDALE

    Apr 11......CHATTANOOGA

    Apr 12.................DURHAM

    Apr 25.....SAN FRANCISCO

    Apr 26.............PORTLAND

    May 30...............BUFFALO

    May 31..............TORONTO

    Jun 6.............ANN ARBOR

    Get tickets at brainson.org/events -- hope to see you there!!

    See omnystudio.com/listener for privacy information.

    27 February 2026, 10:43 pm
  • 33 minutes 17 seconds
    Let's Go Bananas

    HARVEY, our omnipresent virtual voice assistant, gets a software update that makes him go bananas for bananas. And if we talk about anything except bananas, he turns the microphones off! We talk to geneticist Dr. Janina Jeff about how much DNA we share with a banana, find out why bananas make other fruits ripen, how bananas grow, and where that slipping on a banana peel joke came from. Speaking of jokes, we'll hear a bunch of banana jokes from listeners too! Plus: The Moment of Um answers the question: "Why are peaches fuzzy?"

    You can hear more from Dr. Jeff on her podcast In Those Genes.

    Silent film expert Lea Stans has a wonderful blog post about the history of the banana peel joke that you can read right here. You can see some of those early comics that featured the joke! 

    https://www.youtube.com/watch/RMDgmHB4znc

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch 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. More shows announced soon!

    March 7 - Turner Hall Ballroom, Milwaukee, WI

    March 8 - Fitzgerald Theater, St. Paul, MN

    March 28 - Center Stage, Atlanta, GA

    March 29 - Amaturo Theater, Fort Lauderdale, FL

    April 11 - Walker Theater, Chattanooga, TN

    April 12 - Carolina Theater, Durham, NC

    April 25 - Marines Memorial, San Francisco, CA

    April 26 - Newmark Theater, Portland, OR

    May 30 - Electric City, Buffalo, NY

    May 31 - Royal Theatre, Toronto, ON

    See omnystudio.com/listener for privacy information.

    24 February 2026, 7:30 pm
  • 27 minutes 56 seconds
    What is a generation and why do we have them?

    We’re all part of a generation, that’s a large group of people born around the same time as us. These generations have names too, like Gen X, Baby Boomers or Gen Alpha. Who came up with these generations and why do we have them? We’ll speak to experts and learn what makes each generation unique. Plus, what if you could rename your generation? Plus, Mr. Bonejangles can’t remember his birthday so he has no idea what generation he’s part of! All this and a timeless mystery sound. Enjoy!

    Guests:Dr Jean Twenge: Professor of psychology at San Diego State University, and author of iGen, Generations, and 10 Rules for Raising Kids in a High-Tech World.

    Kim Parker: Director of social trends research at Pew Research Center.

    Corey Seemiller: Professor of leadership studies in education and organizations at Wright State University, and author of Generation Z.

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch 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. More shows announced soon!

    Feb 21 - Just for Laughs Festival, Vancouver, BC

    Feb 22 - The Neptune, Seattle, WA

    March 7 - Turner Hall Ballroom, Milwaukee, WI

    March 8 - Fitzgerald Theater, St. Paul, MN

    March 28 - Center Stage, Atlanta, GA

    March 29 - Amaturo Theater, Fort Lauderdale, FL

    Click here for a transcript of this episode

     

    See omnystudio.com/listener for privacy information.

    17 February 2026, 8:30 am
  • 28 minutes 45 seconds
    Why doesn’t stomach acid burn right through us?

    Our stomachs are full of a powerful acid, one that can burn your skin and even melt metal. So why doesn’t this stuff burn a hole through our bellies? We’ll find out how our stomachs protect the rest of us from this acid. Plus, we’ll learn about some of the wildest ways animals digest food and learn about how a serious accident helped us. Don't forget to listen to the Mystery Sound and the latest suggestions for new rooms in our headquarters.

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch 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. More shows announced soon!

    Feb 21 - Just for Laughs Festival, Vancouver, BC

    Feb 22 - The Neptune, Seattle, WA

    March 7 - Turner Hall Ballroom, Milwaukee, WI

    March 8 - Fitzgerald Theater, St. Paul, MN

    March 28 - Center Stage, Atlanta, GA

    March 29 - Amaturo Theater, Fort Lauderdale, FL

    Click here for a transcript of this episode

     

    See omnystudio.com/listener for privacy information.

    10 February 2026, 8:30 am
  • 30 minutes 19 seconds
    Can a spider eat a wasp?

    Today we’re stepping into the ring for a battle of the insect world. Molly and co-host Kiaan try to find out if a spider can eat a wasp. They speak with Dr. Paula Cushing. She has been researching spiders for over three decades. Plus, we flip the script and ask if a wasp can eat a spider. Then, Molly goes full game show mode and puts Kiaan in the contestant chair to play Spidey Sense. We also have a brand new Mystery Sound and a big mailbag reveal.

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch 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. More shows announced soon!

    Feb 21 - Just for Laughs Festival, Vancouver, BC

    Feb 22 - The Neptune, Seattle, WA

    March 7 - Turner Hall Ballroom, Milwaukee, WI

    March 8 - Fitzgerald Theater, St. Paul, MN

    March 28 - Center Stage, Atlanta, GA

    March 29 - Amaturo Theater, Fort Lauderdale, FL

    Click here for a transcript of this episode

     

    See omnystudio.com/listener for privacy information.

    3 February 2026, 8:30 am
  • 24 minutes 53 seconds
    How do stickers stick?

    Stickers are everywhere. They label our groceries, cover our car bumpers, and decorate our notebooks. But how do they stick? We’ll zoom in on a sticker to see how a special glue helps a sticker cling to a surface. Plus, we’ll hear about stickers that can help people heal from surgeries. We’ll also find out what kind of stickers Bob collects, and guess a new Mystery Sound.


    Guest: Phillip Messersmith, professor of material science and engineering at the University of California, Berkeley.

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch and more!

    Click here for a transcript of this episode.

    See omnystudio.com/listener for privacy information.

    27 January 2026, 8:30 am
  • 28 minutes 18 seconds
    Totally Slothsome: All about sloths

    There’s more to sloths than slowness. They’re great at saving energy, hanging upside down, and swimming! In this episode, Sloth Appreciation Society founder Lucy Cooke stops by to tell us all about these amazing animals. We also get into a sloth mystery: The Case of the Perilous Poop Journey. Luckily, there’s a sloth sleuth on the case. And sloths aren’t the only animals who aren’t in a hurry — a few others show off their slowest skills.

    There’s also a Mystery Sound for you to guess. Stay sloooooooooow!

    Guests

    Lucy Cooke, zoologist and founder of the Sloth Appreciation Society

    Jonathan Pauli, UW-Madison Forest and Wildlife Ecology

    Dr. Sushma Reddy, Breckenridge Chair of Ornithology, Bell Museum

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch and more!

    See omnystudio.com/listener for privacy information.

    20 January 2026, 8:30 am
  • 31 minutes 42 seconds
    Hoax Hunters: Can a lake turn animals to stone?

    Have you ever heard of Lake Natron? It’s located in Tanzania, Africa, and, if you believe the internet, it can instantly petrify anything that touches it. Lucky for us, we have a direct line to the Hoax Hunters (aka Sanden and Marc) - they love myths, and they hate getting tricked.

    Along the way to saying yea or nay to this stoney phenomenon, the Hoax Hunters speak with Neovitus Sianga. Not only does he have firsthand knowledge of the lake, but he works for African People and Wildlife, where he helps protect the environment around Lake Natron.

    We also have a brand new Mystery Sound… and Marc and Sanden start a cleaning service?!?

    Guest: Neovitus Sianga

    Want more Hoax Hunters? Here are a few more episodes featuring our hoax hunting pals:

    Are UFOs real?
    Lost Cities
    Mermaids, Kraken and Loch Ness Monster
    Bigfoot, Unicorns and Dragons

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch and more!

    Click here for a transcript of this episode. 

    See omnystudio.com/listener for privacy information.

    13 January 2026, 8:30 am
  • 30 minutes 43 seconds
    Why do skunks stink?

    Skunks can stink, no doubt about it. But that stink is actually a superpower! Join Molly and co-host Diya as they find out how these critters use their smell to scare away enemies, what the smell is made of, and how to make your own de-skunking potion. Plus, Wombat Pete drops by to promote his new music festival, we speak to some skunk experts, and we try our best to guess a new Mystery Sound.

    Don't forget the de-skunking potion mnemonic: 

    4 Cats Had Problems

    Queen Coughed Beside Suzie's Tenth Lasagna, Don't Sneeze

    Translation: 

    4 Cups hydrogen peroxide

    Quarter Cup baking soda

    Teaspoon Liquid Dish Soap

    Guest: Marie Tosa, Research Scientist with the Washington Department of Fish and Wildlife. 

    Guest: Ted Stankowich, Professor in the Department of Biological Sciences and CSU Long Beach.

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch and more!

    Click here for a transcript of this episode.

    See omnystudio.com/listener for privacy information.

    6 January 2026, 8:30 am
  • 35 minutes 55 seconds
    Brains On presents - Rocket women: How a secret program paved the way for female astronauts

     We're on a little winter break and we're gonna be back with a new Brains On episode next week. This week we have an episode of our Sister show forever ago to share with you. If you're interested in origin stories or history, this is the show for you. You can subscribe wherever you listen to Brains On.

    Get ready for an out-of-this-world episode! Joy and co-host Elsa are trapped in a black hole with a baby elephant and a mountain of old junk! 

    They’ll explore the history of a super secret astronaut testing program for women called the “Fellow Lady Astronaut Trainees.” This group of bold, highly-trained pilots spent years making a case for why women are just as qualified to become astronauts as men! 

    Want to support Brains On and all of the shows in the Brains On Universe? Sign up for Smarty Pass. You'll get ad-free episodes of all our shows, bonus content, virtual hangouts, discounts on merch and more!

     

    See omnystudio.com/listener for privacy information.

    30 December 2025, 8:30 am
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