In this episode of the World’s Most Exciting Classroom we’re live in Salvador, Brazil. Meet National Geographic Explorer Leo Lanna as he introduces us to the incredible biodiversity of praying mantises in Brazil! Meet some live praying mantises! Go live into the field as we head for the mangroves in Salvador and learn about how they are protecting this important ecosystem. Find out the results of the Sea Turtle Buoyancy experiment. See this week’s experiment where we explore osmosis with gummy bears! Can you guess what this week’s Curiosity of the Week is?

…and much more!