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Hydrosphere: The Ocean

Authored by Heather Mull

Other Sciences

8th Grade

Used 74+ times

Hydrosphere: The Ocean
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25 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What term is the measure of dissolved salts in water?

Thermocline
Salinity
Saltiness
Tides

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the most abundant solid dissolved in seawater?

Magnesium Chloride
Calcium Chloride
Potassium Chloride
Sodium Chloride

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

What is the major cause of surface currents?

dolphins
wind
hurricanes
tides

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Why does cold water sink in a convection current?

Less dense
more dense
Less humid
More humid

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 How does the Gulf Stream affect the climate in Florida and the United Kingdom?

Florida and the United Kingdom have colder climates.
Florida and the United Kingdom have dryer climates.
Florida and the United Kingdom have warmer climates compared to locations at the same latitude.
None of the above

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A technique that used sound waves to measure the depth of the ocean floor is

dredging
sonar
SCUBA
weighted lines

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Approximately what percentage of Earth's surface is covered by oceans?

40%
50%
60%
70%

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