Science

7th

grade

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Photosynthesis & Respiration Experimental Results

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18 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
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    What were the results of this experiment?

    The amount of O2 increased.

    The amount of CO2 increased.

    The amount of CO2 decreased.

    The amount of O2 stayed the same.

  • 2. Multiple Choice
    30 seconds
    1 pt
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    What may have caused these results?

    Elodea was doing photosynthesis.

    Elodea was doing respiration.

    Snails were doing photosynthesis.

    Snails and elodea were doing respiration.

  • 3. Multiple Choice
    30 seconds
    1 pt
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    If the lights are left on, in which test tube would you expect to see the most CO2 after the experiment?

    A

    B

    C

    D

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