Ocean Currents

The Moon

The Sun

The Earth's core

Ocean tides

It becomes less dense

It becomes denser

It evaporates

It rises to the surface

Warm currents flow away from the equator, and cold currents flow toward the equator.

Warm currents flow toward the equator, and cold currents flow away from the equator.

Both warm and cold currents flow away from the equator.

Both warm and cold currents flow toward the equator.

Warm air and water are more dense and create high pressure, leading to good weather.

Warm air and water are less dense and create low pressure, leading to stormy weather.

Cold air and water are less dense and create low pressure, leading to good weather.

Cold air and water are more dense and create low pressure, leading to stormy weather.

Warm water at the poles rises and moves toward the equator.

Cold water at the equator sinks and moves toward the poles.

Wind creates surface currents, cold water sinks at the poles, and upwelling occurs as surface water is blown away.

Water at the surface always stays at the top due to wind.