Science

11th -

12thgrade

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Comets Assignment

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20 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
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    Unlike asteroids, which are mostly rock, comets are a more balanced mixture of _____
    metal and ice
    rock and metal
    ice and rock
    rock and minerals
  • 2. Multiple Choice
    30 seconds
    1 pt
    Image
    As comets progress through their elliptical orbits, they are heated mostly by _____
    the Sun
    friction
    internal molten metals
    convection of gases
  • 3. Multiple Choice
    30 seconds
    1 pt
    Image
    The process of ice turning directly into a gas is called _____
    fusion
    convection
    sublimation
    evaporation
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