Scientific Method Question
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An experiment always has an independent variable but never has a dependent variable. Choose the answer that corrects this statement.
- Experiments do not need variables unless you are making measurements and trying to support your hypothesis.
- The dependent variable is actually the only variable needed to complete an experiment.
- Both variables are necessary but are unrelated to each other.
- Experiments must have an independent variable that, when altered, changes the outcome of the dependent variable being recorded.