3rd Nine Week: The Movement of Ocean Water REVIEW

Which phrase describes a surface current?

• gets cool near the equator

• flows like a stream

• stretches from north to south

• creates global winds

In what direction do global winds and currents flow near the equator?

• east to west

• west to east

• toward the land

• north to south

How does the Coriolis effect make ocean currents appear to move?

• back and forth

• in a curved path

• clockwise

• against the Earth's rotation

What happens to an ocean current when it hits a continent?

• It changes direction.

• It moves toward the poles.

• It moves toward the equator.

• It speeds up.

How are deep currents different from surface currents?

• They are warmer and faster.

• They are caused by winds.

• They are denser and slower.

• Some are colder than others.

What happens to water when the air above it gets cold?

• It evaporates.

• It gets denser.

• It moves faster to stay warm.

• Its salinity increases.

What happens to the water that is left behind after evaporation?

• It gets hotter.

• It gets less dense.

• It moves faster to stay warm.

• Its salinity increases.

What is the highest point of a wave?

• crest

• trough

• wave height

• wavelength

What is the lowest point of a wave?

• crest

• trough

• wave height

• wavelength

What is the distance between two crests or troughs?

• crest

• trough

• wave height

• wavelength