1. Introduction to Physical Science--Vocabulary

2. Experiment

3.  An organized procedure for testing a hypothesis

4. Independent or manipulated variable

5.  The factor adjusted by the experimenter.

6. Responding or dependent variable

7.  The factor whose value changes because of a change in the independent or manipulated variable.

8. Control variable

9.  The factor that does not change in the experiment http://www.sciencebuddies.org/science-fair- projects/project_variables.shtml#examples http://www.sciencebuddies.org/science-fair- projects/project_variables.shtml#examples

10. Control Group

11.  A standard of comparison needed to draw a meaningful conclusion.

12. Trial

13.  The act of testing, or putting to the proof.

14. Repeated trials

15.  Multiple experiments of same process to insure accuracy of data

16. Hypothesis

17.  A testable prediction

18. Procedures

19.  The sequence of instructions followed in solving a problem.

20. Data evidence

21.  A single piece of information from which a conclusion can be drawn.