1. Scientific Variables

2. Independent Variables
Something that is changed by the scientist
What is tested
Also known as the manipulated variable

3. Dependent Variable
Something that might be affected by the change in the independent variable
What is observed
What is measured
Also known as the responding variable

4. Controlled Variable A variable that is not changed
Kept the same through the experiment
Also known as a constant

5. Identify the Variables!
Ms. Moore wants to see if changing the amount of water added to peony plants will produce more roses. She uses the same type of peony plant, food and amount of sunlight during the experiment.
Independent Variable
Amount of water
Dependent Variable
Amount of roses produced
Constant
Food, plants, soil