1. Variables

2. Variable: any factor that can be changed, measured, or controlled.
Variables are used in an experiment to help scientists test a hypothesis
There are 3 different types of Variables

3. 1. Independent (manipulated)
The One variable that is Purposely changed to test a hypothesis
Remember: “I change the Independent”

4. 2. Dependent (responding)
The variable you Measure.
The variable that changes in Response to the independent variable.
Remember: “Responds is the Responding”

5. 3. Controlled (constants)
The variable or variables that stay the same, stay constant
Remember: “Controlled are Constant”

6. “ DRY MIX ” DRY Dependent/Responding Variable plotted on Y-Axis
MIX Manipulated/Independent Variable plotted on X-Axis

7. Example: Does the size of a paper airplane affect how far it flies?
Independent: ___________________________ Dependent: ____________________________ Controlled: _____________________________

8. Example: Does the size of a paper airplane affect how far it flies?
Independent: We change the Size of the paper Dependent: How far it flies, the distance, depends on how the independent variable Controlled: The paper type and the force at which it is thrown