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Science

7th

grade

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Unit Review

7
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12 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    A convection current is any movement of matter that results from differences in density.

    True

    False

  • 2. Multiple Choice
    30 seconds
    1 pt

    Which of the following correctly shows the chain of energy transfers that create surface currents on the ocean?

    solar energy → wind energy → surface currents

    wind energy → solar energy → surface currents

    tidal energy → wind energy → surface currents

    geothermal energy → wind energy → surface currents

  • 3. Multiple Choice
    30 seconds
    1 pt

    Which type of current occurs when the ocean’s surface water becomes denser than the water below it and sinks?

    Coriolis current

    Surface current

    Deep current

    Upwelling

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