Physics, Science

7th -

8thgrade

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Some Natural Phenonmena

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10 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Which instrument is used to measure earthquake?

    Richter scale

    Seismograph

    Polygraph

    none of these

  • 2. Multiple Choice
    30 seconds
    1 pt

    How many charges are gained by rubbing two objects

    1

    2

    3

    4

  • 3. Fill in the Blank
    1 minute
    1 pt

    The crust and upper layer of mantle together make an____________________

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