How do Ocean Currents Work - TED Ed

What are ocean currents driven by?

• Wind

• Tides

• Changes in water density

• Rotation of the Earth(Coriolis effect)

• All of the above

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NGSS.MS-ESS2-6

What are the two main categories of ocean currents?

• surface currents and deep ocean currents

• mid-level currents and deep ocean currents

• surface gyres and deep gyres

• rotating gyres and non rotating gyres

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NGSS.MS-ESS2-6

Deep-ocean currents mobilize only 10% of the Earth’s water.

• True

• False

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NGSS.MS-ESS2-4

Water as deep as _______ is still affected by the wind at the Earth’s surface.

• 50 meters

• 250 meters

• 400 meters

• 700 meters

How quickly does the global conveyor belt move?

• 2 kilometers per hour

• 2 meters per hour

• 2 meters per second

• a few centimeters per second

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NGSS.MS-ESS2-6

What would happen to ocean currents if the earth didn't rotate?

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NGSS.MS-ESS2-6

How did the shipping containers of 28,000 ducks help map ocean currents?

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NGSS.MS-ESS2-4

How do you think rising sea temperatures will affect ocean currents and the greater ocean ecosystems? Are there steps that can be taken to protect these ecosystems?

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