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100
The movement of water from greatest depths...
Upwelling
100
Where is the densest water found?
The bottom of the ocean.
100
A measure of saltiness of water is known as...
Salinity.
100
A technology system that uses sound waves to measure distance...
Sonar
100
Narrow, steep sides of the ocean floor are known as...
Ocean trenches.
200
What are seamounts?
Seamounts are underwater mountains.
200
Volcanoes tall enough to reach the ocean surface are known as...
Volcanic islands.
200
What causes surface currents?
Wind.
200
What do ocean waves transport?
Ocean waves transport energy.
200
The periodic rising and falling of the ocean level is called...
Tides.
300
These occur when high winds or waves cause a larger than usual amount of water to wash back from the shore.
Rip tides.
300
As a wave crest passes, the particles move in a...
Circular path.
300
What are two causes of currents in the ocean?
Wind and temperature.
300
What kind of current is the Gulf Sream?
Surface current.
300
A mid-ocean ridge.
A chain of mountains that run through an ocean basin is...
400
How is the ocean floor similar to lands surface?
They are similar by having mountains and volcanoes.
400
A wide, flat area of the ocean floor that is covered with a thick layer of sediment is?
An abyssal plain.
400
How is water carried around the globe?
Ocean currents.
400
What do surface currents carry away from the equator?
Warm water.
400
How often do spring tides occur?
Twice a month.
500
What are the four parts of a wave?
Crest, trough, wavelength, and wave height.
500
Explain what a downwelling is...
Downwelling is the movement of water from the surface to greater depths.
500
Name the seven continents.
North America, South America, Antartica, Asia, Africa, Austraillia, and Europe
500
Name the four major oeans...
Pacific Ocean, Arctic Ocean, Indian Ocean, and the Atlantic Ocean.
500
What major ocean is the deepest?
Pacific Ocean.
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