Question: Choose your answer.

A student proposes the rate of increase in a plant's mass will be proportional to the length of light exposure per day when all other variables are constant. How should this proposal be classified?
My Answer: as a hypothesis

Question: Choose your answer.

The continental crust floats on top of the mantle because the crust is
My Answer: less dense than the mantle.

Question: Choose your answer.

A student notices dogs have more fleas in the summer than in the winter. Based on these observations, which is the most logical question for the student to investigate?
My Answer: How does temperature affect the amount of fleas on dogs?

Question: Choose your answer.

Water that is used to cool nuclear power plants can be released into water bodies, causing an area called a thermal plume. A thermal plume can be 12-18°C warmer than surrounding waters. Although some fish may be attracted to the warmer water, other organisms may not be able to survive. Government officials order a study to determine the effects of a thermal plume in a water body near a nuclear power plant in North Carolina. Which factor most related to temperature should the study focus on in order to determine whether the thermal plume is damaging the health of the water system?
My Answer:
dissolved oxygen