Have you ever sent a message in a bottle? In this BrainPOP UK movie, Tim and Moby explore the ocean currents! In this educational, animated movie discover how wind, water density, and continents all affect the direction and speed of currents. You’ll find out how the equator affects wind direction, and how sailors make use of ocean currents to travel between continents. You’ll also learn how plants and seeds are carried around the world by currents and how animals are guided by them in their yearly migrations. By the way, that message? You should probably send it by mail...