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Science

8th

grade

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Weather

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    Image

    How are the convection currents in the lava lamp different than convection currents in the atmosphere?

    warm air in the atmosphere sinks instead of rises

    The earth gets its heat from the sun and the lava lamp gets its heat from the light bulb below.

    Convection cells in the atmosphere flow in the same direction instead of opposite

    Cold air is less dense instead of being more dense.

  • 2. Multiple Choice
    30 seconds
    1 pt

    The number one thing hurricanes need is...

    warm water

    cold air from cold fronts

    cold water

    strong warm front

  • 3. Multiple Choice
    30 seconds
    1 pt

    What causes global convection currents

    Forests

    greenhouse gases

    more land forms

    uneven heating of the Earth's surface

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