Oceans

What is the part of the ocean where most life is found? This is also the sloping border on the continent that is below the water.

• ocean trench

• continental shelf

• abyssal plain

• ocean current

This is the steep slope to the ocean floor. It's the transition between the continental crust and the oceanic crust.

• trench

• continental shelf

• abyssal plain

• continental slope

This is a smooth flat surface of the ocean floor.

• ocean trench

• abyssal plain

• tide

• current

What is a deep cut in the ocean floor?

• ocean trench

• abyssal plain

• continental shelf

• continental slope

True or False. There are some parts of the ocean that are deeper than Mount Everest is tall.

• True.

• False.

What are ocean currents?

• movement of ocean water from one area to another

• the gravitational pull on the water by the moon

• the daily newspaper of a coastal town

What causes ocean currents?

• It's all the moon's fault.

• Wind patterns and differences in water temperature

• Plants

• The movement of ships on the ocean

The Gulf Stream is

• an airplane that is really cool.

• a high powered water hose.

• a strong current located off the east coast of the U.S.

• a hurricane that formed in the Pacific Ocean.

The salinity of ocean water is determined by

• the depth of the water, melting icebergs, rates of evaporation, and the amount of runoff from nearby land.

• the number of ships on the ocean, pollution, and the number of animals in the ocean.

• the phase of the moon, the amount of moisture in the air, and the amount of trash in the ocean.

True or False. Ocean water is a mixture of gases, water, and dissolved solids.

• True.

• False.