Practice Practice Practice
Experiment 1
 Marty feeds Kibbles the bunny
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carrots. He wanted to see how
feeding kibbles lettuce would
affect the height of her hop.
What is the purpose of the
experiment?
What could be a hypothesis?
What is the independent
variable?
What is the dependent
variable?
Experiment 2
 Garth wanted to see how if eating
cheese would make his hair grow
longer. He measured the length
of his hair before and after one
month without eating cheese.
Then did the same thing after
eating cheese twice a day.
 What was his hypothesis?
 What was the independent
variable?
 What was the dependent
variable?
Experiment 3
 Zeus thought that Gatorade would
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help him run faster. He timed
himself running 100m 5 times after
just drinking water. Then he drank
Gatorade and timed himself again.
What was the hypothesis?
What was the independent
variable?
What was the dependent variable?
What was the control?
What should Zeus make sure he
keeps constant?