The creators of the award-winning science podcast for kids, Brains On!, take readers on a humorous, highly illustrated, fact- and fun-filled journey through Earth—from the core, to the outer atmosphere, and everywhere in between. Perfect for STEM enthusiasts!​Did you ever wonder why volcanoes erupt? Or why the ocean is salty? How about why no two snowflakes are the same?Embark on an epic road trip to find the answers to these burning questions and more! The Brains On! team is