1. Scientific Method

2. Observation
collect information or data

3. Hypothesis
possible explanation for something happening that can be tested

4. Experiment
procedure carried out under controlled conditions to test a hypothesis
Control group
Experimental group
Independent variable
Dependent variable

5. Control group
standard of comparison, always remains the same

6. Experimental group
a single variable is changed in order to test the hypothesis

7. Independent variable
variable that is changed

8. Dependent variable
changes in response to independent variable

9. Theory
general explanation supported by evidence