Ocean Currents, Tides, and Upwelling

Front

The movement of deep, cold, nutrient filled water to the surface of the ocean is..

Back

Upwelling

Front

What affects the density of water?

Back

Salt and Temperature

Front

Why is upwelling important?

Back

Upwelling provides nutrient rich water that sustains life

Front

When surface currents meet continents they ___?

Back

Are deflected (change paths)

Front

Two types of ocean currents are

Back

surface and deep

Front

What are a circular system of currents in the Earth's major oceans?

Back

gyre

Front

Currents that occur at or near the surface of the ocean are called

Back

Surface Currents

Front

What mainly causes surface currents?

Back

Wind

Front

What happens when there is a spring tide?

Back

really high tides

Front

What are tides?

Back

The rising and falling of the water on the earth surface