The oceans are always moving—rising, falling, swirling, and crashing—but what’s really making all that happen? In this episode of Explain It Like I’m 5, Alex explores how tides, currents, and waves work together to keep Earth’s waters in constant motion.

You’ll learn how the moon’s gravity creates tides, how the Earth’s spin and temperature differences drive ocean currents, and how waves carry energy across the surface. We’ll also uncover some incredible ocean facts, from underwater “rivers” and global conveyor belts to why the Pacific could swallow all the continents twice.

By the end, you’ll see the ocean not as a still blue blanket, but as a living, breathing system—one that shapes climate, weather, and life itself.