Variable Practice
Identify the variables in each experiment below.
Test Variable (Independent Variable)= Changed by experimenter
Outcome Variable (Dependent Variable) = Measured to show effect of the test
variable
Controlled Variables = Factors that need to be kept the same in an experiment.
1. Which liquid causes teeth to decay fastest?
Test:
Outcome:
Controlled:
2. What food types will ants remove the quickest?
Test:
Outcome:
Controlled:
3. Does the amount of salt added to water affect the growth of
plants?
Test:
Outcome:
Controlled:
4. Does texting affect the number of accidents a person has?
Test:
Outcome:
Controlled:
5. What type of container keeps liquids hot longer?
Test:
Outcome:
Controlled: