Ocean Currents

What two factors increase density of water?

A fluid can be a ______ or a ______ .

Tropical surface currents bring _____ temps because the air above is ______ .

Waters that move in streams are called ____ .

Ocean Currents, along with wind, transfer ____ around the world.

What is more dense saltwater or fresh water?

What is more dense, warm water or cold water.

Deep ocean current start at the poles because the water is _____ and ____.

When trade winds move surface water away and cold nutrient rich water rises a(n) ______ occurs.

_______ cause ocean currents to change direction.

________ is the amount of dissolved salts in a liquid.

Polar surface currents bring ____ temps because the air above these currents is ____ .

Earth's poles are colder because sun's ray hit the earth ______ in these regions.

When water freezes _____ is left behind in the water, increasing the salinity in that region.

The Coriolis Effect is caused by ____ .

_____ currents warm or cool the air above them.

Our weather tends to come from the west b/c at our latitude the _____ are the prevailing winds.

What region on the earth is the warmest?

Global winds cause _________ currents.

Deep ocean currents flow slowly they can take up to _____ years make one complete circuit.

Temperature differences around the world occur because the sun heats the earth ____ .

Periodically trade winds weaken or change directions as a result a(n) ______ occurs.

The largest and most powerful current, the __ , brings warm temps to Scotland and Scandinavia.

Deep Ocean Currents are caused differences in __________ .

_______ blow from east to west.

During El Nino events, temporary changes in ______ around the world occurs.

_____ made some of the earliest studies of ocean currents.