Question

mark observes that when his father throws a basketball, it bounces higher than when mark throws the same ball. he wonders, \is this because my dad is much taller than me?\ what can mark do to best answer his question?
○ shop for another basketball.
○ throw the ball from different heights.
○ watch a basketball game.
○ ask his father why he thinks this happens.

Explanation:

To answer if height (throw height) affects bounce, Mark should test by throwing from different heights. Shopping for another ball or watching a game doesn't address the height factor. Asking his father is a guess, not a test. Throwing from different heights allows him to see the relationship between throw height and bounce height.

Answer:

B. Throw the ball from different heights.