3) Question: Does the size of a soccer ball affect how well it can be juggled? Hypothesis: If a soccer ball is larger in size then it can be juggled longer than a smaller ball.
Experiment: You want to test which size of soccer ball is easiest to juggle with your feet. You test a size 3, size 4, and size 5 ball. You count the seconds the ball stays in the air for each of the trials. You allow yourself to use both of your feet, knees, and head to juggle the ball.
a. What was the independent variable?
b. What was the dependent variable?
c. What was the control?
d. Was there a constant variable?