What causes ocean currents?
Science Benchmark Review #1

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Science
•
4th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Ocean currents are primarily caused by wind patterns and differences in water temperature and salinity.
2.
FLASHCARD QUESTION
Front
What are the two basic movements of ocean water?
Back
The two basic movements of ocean water are currents and tides.
3.
FLASHCARD QUESTION
Front
What is a community in an ecosystem?
Back
A community is made up of different populations of plants and animals living together in a specific area.
4.
FLASHCARD QUESTION
Front
Which area of the ocean has the least amount of living organisms?
Back
The continental shelf has the least amount of living organisms compared to other areas.
5.
FLASHCARD QUESTION
Front
What is the Continental Slope?
Back
The Continental Slope is the steeply sloping area of the ocean floor that leads down from the continental shelf.
6.
FLASHCARD QUESTION
Front
What is the role of the sun in ocean currents?
Back
The sun heats the water, creating temperature differences that contribute to ocean currents.
7.
FLASHCARD QUESTION
Front
What are tides?
Back
Tides are the regular rise and fall of sea levels caused by the gravitational pull of the moon and the sun.
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