Ocean Systems Middle School

What is the name of the largest and most powerful surface current in the North Atlantic Ocean? 

• Gulf of Mexico 
• Pacific Steam 
• Gulf Stream
• Atlantic Ocean steam 

What force guides the movement of deep currents?

• density differences
• wind
• Coriolis Effect
• continental barriers

The horizontal movement of ocean water that is caused by wind and occurs at or near the ocean's surface is a(n) _________________.

• density current
• surface current
• turbidity current

The factors that affect surface currents are________________.

• salinity, temperature, and turbidity
• wind, salinity, turbidity
• wind, salinity, temperature
• wind, Coriolis Effect, continental barriers

The two categories of ocean currents are _____________________.

• salinity, temperature
• density, temperature
• surface, deep
• freshwater, saltwater

Deep Ocean currents are a result of

• Global Wind Patterns
• Earth's Rotation
• Density
• All of the above

The Coriolis Effect is caused by

• Earth rotating around the sun
• Earth rotating on its axis
• The tides
• Gravity

The Gulf stream carries _____________ water from the east coast of The United States to the West coast of Europe.

• Cold
• Warm 
• Freezing
• Fresh

Currents that flow from the equator toward the poles are usually

• warm
• cold
• irregular in motion
• no specific temperature

Currents that flow FROM the poles towards the equator are usually

• warm
• cold
• irregular in motion
• no specific temperature