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variable anything you can change in an experiment that might affect the outcome
pendulum a mass hanging from a fixed point that is free to swing to and fro
experiment an investigation designed to find out how variables affect outcomes
controlled experiment an experiment in which one variable is changed and the outcome is compared to a standard
independent variable a variable whose value may be determined freely without reference to other variables
dependent variable a variable whose value is determined by the value of another variable
Created by: pgoshert