I have to use the terms hypothesis, controlled experiment, and variable in the same sentence.

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The scientist stated her hypothesis, set up a controlled experiment, and isolated the variable that could affect her work.
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I had a hypothesis about ice pops. so I put 1 in the freezer, and 1 in the sun for a controlled experiment. the variable for the ice pop in the sun, was that it melted. the ice pop in the freezer stayed it's original 12 inches