TED-Ed: How Ocean Currents Work
Science → Earth Science → Ocean Currents
Science → Earth Science → Coriolis Effect
Science → Oceanography → Thermohaline Circulation
This clip illustrates ocean currents and the factors that affect them. It mentions that there are both surface currents and deep sea currents, which make up 90% of the ocean's water. It also explains how the Earth's rotation causes phenomena such as the Coriolis Effect.