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8 September, 11:44

Juan propped up a graham cracker in a shallow bowl. He then set up an electric fan to blow on the graham cracker at three different speeds. What is Juan's independent variable in this experiment?

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  1. 8 September, 12:13
    0
    The speed of the electric fan.
  2. 8 September, 15:34
    0
    The independent variable is the changing fan speeds.

    Independent variable are changed or controlled in experiments.
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