Unformatted text preview: ! Scientific Experiments Follow Rules Rules An experimenter changes one factor and observes or measures what happens. The Control Variable The
The experimenter makes a The special effort to keep other factors constant so that they factors will not effect the outcome. will Those factors are called control variables. control What is the Purpose of a Control? Control?
Controls are NOT being tested Controls are used for COMPARISON Other Variables The factor that is changed is known as the independent variable. The f...
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- Spring '08
- hypothesis Hypothesis, Observation Hypothesis Experiment, Experiment Experiment, Scientific Method Scientific