Where can you find the tallest mountains, deepest valleys, and flattest plains? Not anywhere that doesn’t require gills to breathe — that’s right, they’re in the oceans! In this BrainPOP UK movie, Tim and Moby will tell you all about the landscape of our underwater world. In this educational, animated you’ll learn what happens when the continental shelf comes to an end, and discover how ocean currents and the movement of tectonic plates form trenches, valleys, plains, and ridges. And find out how earthquakes and volcanoes are continually remaking the ocean floor! Ready to go for a hike — underwater?