1. Or what changes during experiments….
What are variables?
Or what changes during experiments….

2. Independent Variables
This is the variable that is purposefully being changed in the experiment.
What is tested by the scientist.
Also known as the manipulated variables
Only one per experiment.

3. Dependent Variable
This is what is being measured to see how it responds to the manipulative variable.
What is observed, measured, counted
The effect caused by the independent variable.
The data
Also called responding variables

4. Controlled Variables
The things that are kept the same in the experiment.
Kept constant (the same) by scientists
These allow for a fair test.