Want to dive into the world of submarines? In this BrainPOP movie, Tim and Moby will teach you everything you’ve ever wanted to know about these sinkin’ submersibles. How is a submarine able to float on the surface of the water one moment, and dive to the bottom of the ocean in the next? You’ll find out! You’ll also learn about the interaction between a sub’s batteries and its engines and how far a submarine can travel without refueling. Plus, you can discover the many parts of a submarine, including propellers, ballast tanks, hydrofoils, and periscopes! Get ready to be 10,000 leagues (okay, maybe slightly fewer) under the sea!