Question

scientific method, conversions, classification test retake
which of the following hypotheses is written correctly?
frozen tennis balls will not bounce as high.
if i freeze a tennis ball, then it will not bounce as high.
if a tennis ball is frozen, it won’t bounce as high as one that is not frozen.
if i heat up a tennis ball it will bounce high.

Explanation:

A correct hypothesis is typically written in an "if - then" format that clearly states the independent variable (what is being changed) and the dependent variable (what is being measured). In this case, the independent variable is the state of the tennis ball (frozen or not frozen), and the dependent variable is the height of the bounce. The third option clearly compares the bounce - height of a frozen tennis ball to that of a non - frozen one.

Answer:

If a tennis ball is frozen, it won’t bounce as high as one that is not frozen.