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Science

7th

grade

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Natural Hazards

210
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21 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Lava flows

    a break in Earth's lithosphere where energy is released

    fast moving avalanches of hot gas, ash, and rock

    long streams of molten rock from volcanoes

    the energy released when rocks break because of stress

  • 2. Multiple Choice
    30 seconds
    1 pt

    moment magnitude scale

    a digital instrument used to measure earthquake waves

    rates the amount of shaking from an earthquake

    a rating system that uses newer technologies to measure the total energy released by an earthquake

    a rating system that uses observations about damage to determine the strength of an earthquake

  • 3. Multiple Choice
    30 seconds
    1 pt

    Richter Magnitude Scale

    a digital instrument used to measure earthquake waves

    rates the amount of shaking from an earthquake

    a rating system that estimates the total energy released by an earthquake

    numerical rating system used to measure the amount of energy released during an earthquake

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