Ocean Currents Worksheet
Explore the causes and effects of ocean currents with this Grade 7 science worksheet, covering surface currents, deep ocean currents, and their impact on climate.
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Ocean Currents: A Deep Dive
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. What is the primary force that drives surface ocean currents?
Earth's rotation
Winds
Tides
Volcanic activity
2. What is the name for the continuous movement of ocean water driven by temperature and salinity differences?
Surface currents
Tidal currents
Thermohaline circulation
Coastal currents
3. The Coriolis effect causes ocean currents in the Northern Hemisphere to deflect to the .
4. Warm ocean currents generally flow from the towards the poles, while cold currents flow from the poles towards the equator.
5. Deep ocean currents are primarily driven by surface winds.
True
False
6. Ocean currents play a significant role in distributing heat around the globe, influencing regional climates.
True
False
7. Explain how the sun's energy contributes to the formation of surface ocean currents.
8. Describe the role of ocean currents in marine ecosystems.
9. Examine the diagram of ocean zones below. How might different ocean currents affect the marine life found in each zone?
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