Erin was asked to design an experiment that would give the evidence needed to support the hypothesis: “A 6 inch playground ball will bounce higher than a 3 inch playground ball, because it is bigger.” Which of the following statements would not be a part of Erin’s experiment?



Determining all of the variables.


Repeating her experiment 5 times.


Recording her results as well as her observations.


Dropping the balls from different heights.