Casteel SOL 4.7b Waves, tides, and currents

The development of a wave usually begins with

• currents

• wind

• gravity

• tsunamis

The top of a wave is its

• trough

• crest

• wave height

• wave length

The bottom of a wave is its

• trough

• crest

• wave height

• wave length

The rise and fall of Earth's waters on its coastlines are called

• currents

• tides

• waves

• gravity

A large stream of water that moves through the ocean is called a

• longshore drift

• current

• tide

• wave

Surface currents...

• occur below the surface of the water.

• occur above the surface of the water.

• occur on the surface of the water.

• All of the above.

Deep currents are caused by...

• density differences caused by temperature & salinity.

• changes in wind directions.

• prevailing winds.

The Gulf Stream current makes the waters of North Atlantic

• cooler

• warmer

• more dense

• less nutrient rich

Surface ocean currents are generated mostly by

• the Coriolis effect

• water density

• tides

• wind

Spring tides and neap tides occur in patterns governed by the

• phases of the moon

• seasons (fall, winter, etc.)

• surface currents

• deep sea currents