1. The Controlled Experiment Why It Is So Important To You!!!!

2. Parts of an Experiment Trials Controls Variables

3. Controls  Factors in an experiment that are held constant (the same) from one part of the experiment to another

4. Trials  The number of times an observation or measurement is made during an experiment

5. What Parts Are There?  1. Variables: factors that change in an experiment experiment  2 Types:  Independent Variable  Dependent Variable

6. Independent Variable  The variable that is purposefully changed or manipulated in an experiment This is where you make the desired changes to test their results!!! Get it...change?

7. Dependent Variable  Variable that changes in response to manipulations of the independent variable The outcome of the dependent variable DEPENDS on the independent variable!!! Get it, depends?