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Molly is working on a musical about trees that live in cities. But she can’t finish her rhymes! So she enlists Ruby and Anna to help. Molly gives them some of her unfinished lyrics and it’s up to them to help her turn a single sentence into a fact-filled musical couplet!

Marc’s built an interactive Antarctica exhibit in the Brains On Labrakitchen’s walk-in freezer! When Molly and Ruby come by looking for some ice cream, Marc challenges them to a game of Antarctica trivia.

Did you know that more than half the people in the world lives in cities? The hustle and bustle of a city can be awesome, but cities can also be hot and polluted. Luckily, there’s a solution we can all get behind – trees!

98.6 degrees is hot. If it were that hot outside, you’d be sweaty and want to go jump in a nice cold pool. But the insides of our bodies are that hot all the time! 

Looking for some sneaky sound puzzles to solve? Tune in to our all-new mystery sound extravaganza!

Vacuums are full of surprises! Did you know that they blow air out to suck things up?

Have you ever wondered why a guitar sounds different from a violin? Or why a banjo is twangy and a cello is mellow? Then this episode is for you!

Looks like Marc has a beautiful new plant but doesn’t know where to put it. Direct sunlight or indirect sunlight? It’s too hard to figure out! But you know what’s not hard to figure out? Whether or not you should play Molly’s new game, Radical Design! Grab your Smarty Pass to see what producers Marc Sanchez and Rosie duPont think homes would look like on other planets.

Humans have visited the moon but we’ve never lived there. Could we build a home on our lunar neighbor?

Looking for an escape? Join Molly and co-host Julian as they explore Antarctica! They’ll learn about Antarctica’s massive ice sheets and active volcanoes — plus they’ll meet the largest land animal on the continent!

Have you ever taken a big ol’ whiff of rotten milk? It probably smelled like dirty socks or stinky garbage. Blech! But why does food go bad, and how can we be sure that something is fresh and safe to eat?

Ouch! If you’ve ever stubbed your toe, gotten a paper cut or fallen off your bike, you know that getting hurt is no fun. Sometimes we can take medicine to help feel better, like ibuprofen. But how does that medicine know where to go in our bodies to stop the pain?

Oh no! It looks like Brains On host Molly Bloom and producer Marc Sanchez are in some deep trouble, and the only way to get out of it is with an extra special game of Mystery Sounds. Will either of them be able to guess the right sound? Grab your Smarty Pass to find out!

On April 8, a total solar eclipse will be visible on a path that crosses North America, from the west coast of Mexico to the east coast of Canada.

We love a good mystery, and UFOs are magnificently mysterious! But are they real?

We're so excited to announce that Brains On is coming to the east coast! We’re doing three live shows -- in Washington DC, Princeton, New Jersey and Brooklyn, New York!

You’re invited to an exclusive virtual Smarty Party! Whether you’ve been here since the beginning or just subscribed to Smarty Pass, we are so grateful for your support. To say thank you, you’re invited to attend one of two virtual Smarty Parties. 

Laughter is like a language and humans are really good at understanding it.