1. Variables Vocabulary

2. Variable Notes on page 41:
A factor in an experiment that changes or could be changed.
Example:
Wings folded or not folded on helicopter
Spin of the helicopter

3. Independent Variable The variable that is changed on purpose. Example:
Ways the wings were folded.

4. Dependent Variable
The variable that responds to the independent variable
Example:
Spin of the helicopter. Clockwise or counter-clockwise

5. Control
The standard for comparison in an experiment, the independent variable is not applied to control group.
Example:
Helicopter without wings folded back.

6. Constant A factor in an experiment that is kept the same in all trials
Example:
Same person drop the helicopter from the same height each trial.

7. Repeated Trials
The number of times an experiment is repeated for each value of the independent variable.
Write in your own words.