Question

practice it! select the statement(s) that indicate an experiment. scientists give ants white sugar and brown sugar to see which they eat more. the black bear begins to hibernate in september, while the brown bear begins to hibernate in november. when placed in saltwater and freshwater, the egg in the saltwater floats. a group of scientists travel to nova scotia to observe the behaviors of the star - nosed mole. a scientist bounces three different brands of tennis balls on a court to see which bounces the highest.

Explanation:

An experiment involves manipulating variables to observe outcomes.

• 1: Scientists manipulate sugar type (white/brown) to observe ant consumption.
• 3: Manipulates water type (salt/fresh) to observe egg floating.
• 5: Manipulates tennis ball brand to observe bounce height.

Others are observations without manipulation.

Answer:

Scientists give ants white sugar and brown sugar to see which they eat more., When placed in saltwater and freshwater, the egg in the saltwater floats, A scientist bounces three different brands of tennis balls on a court to see which bounces the highest.