Testable Questions Practice

What is the Independent Variable (IV) in the following testable question: Does the temperature of a tennis ball affect the height of its bounce?

• the temperature of tennis ball
• height of the bounce

Mrs. G set up an experiment to see how the type of ball affects the distance it rolls off a ramp.  Identify the Independent Variable in this experiment.

• distance traveled by the ball
• height of the ramp
• the type of ball

What is the Dependent Variable (DV) in the following testable question? Does a metal baseball bat vibrate more than a wooden baseball bat?

• the type of baseball bat
• the amount of vibration

Is the following question testable or non-testable? Which brand of popcorn leave the fewest unpopped kernels?

• Testable
• Non-Testable

Is the following question testable or non-testable? Under what color light do plants grow the best?

• Testable
• Non-testable

Mrs. G and Ms. H were debating how much fizz regular soda and diet soda made. Choose a testable question they could use to conduct an experiment.

• Is the amount of fizz different in soda?
• Which soda has a lot of fizz?
• Does regular soda produce more fizz than diet soda?

The variable we measure to get our results the:

• Dependent Variable
• Independent Variable
• Constant

The variable we are changing/investigating in an experiment is the:

• Dependent Variable
• Independent Variable
• Constant

How many variables can be tested in a controlled experiment?

• one
• two
• three
• as many as possible

The variables in an experiment that stay the same are the:

• IV
• DV
• Constants