
What's in the COVID vaccine?
23 February 2021 - 28 minsIn this episode, we're using our zoom ray to zoom way in and answer your questions about the COVID vaccine. What's in the COVID vaccine? How does it work? And how do they make it? We'll also look at how our fight against the new coronavirus has had a huge impact on another virus: influenza. And, we'll head to a stadium to learn what 95% effective means for a vaccine. (Warning: There are seagulls overhead!)
Plus, we'll have a brand new mystery sound and a Moment of Um that answers the question: what do scientists eat in Antarctica?
Read Katherine Wu’s article about what’s happening with the flu this year: https://www.theatlantic.com/science/archive/2021/02/covid-19-flu-s...

Tree, Myself and I: All about our leafy green friends
Trees 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. Oh, and our Moment of Um answers the question: why does the moon sometimes change color? This episode is sponsored by Discount Tire (discounttire.com) and Raddish, a cooking club for kids (RaddishKids.com/brains and coupon code BRAINS). You can support the show at brainson.org/donate.
28 mins
20 May Finished