Science

6th -

8thgrade

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Chemical Reactions

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10 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
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    Which observation(s) might be used as evidence that a chemical reaction occurred?
    Color change
    Odor change
    Properties change
    All of the above
  • 2. Multiple Choice
    30 seconds
    1 pt
    Image
    _________ is (are) made of more than one atom.
    A molecule
    Protons
    Neutrons
    An element
  • 3. Multiple Choice
    30 seconds
    1 pt
    Image
    ________ result(s) in no new substances.
    A physical change
    A chemical change
    Physical and chemical changes
    None of the above
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