Pre_goal - I can tell the difference among the definitions of the dependent variable, independent variable, and the control variable.

Using the definitions below to answer questions #1-3.

Key Terms

-Variable: An element, feature, or factor that can vary or change (i.e. ramp height, etc.)

-Dependent Variable: A variable whose value depends on another variable and is measured.

-Independent Variable: A value not dependent on another value but directly changed by an experimenter.

-Control Variable: A variable that is kept the same throughout an experiment.

*There can be many control variables but only one variable can be directly changed (independent)

and for simplicity one measured variable (dependent). All other variables must be controlled.

Goal - I can recognize the Independent, Dependent, and Control variables given in an experiment.