Part A
Find a room that can be made completely dark. In the room, tape a piece of white paper on the wall at eye level. Turn on
the flashlight, and turn off the lights in the room. Observe what the light looks like as it hits the white paper. Next, place
the clear plastic in front of the flashlight. Does the plastic affect how the light hits the paper on the wall? If so, how?

Malik formed a hypothesis that an increase in atmospheric oxygen levels by 10% would cause red-legged grasshoppers to grow larger than normal. suppose that malik performs an experiment to test his hypothesis. which of these actions would represent a scientific mistake in his experiment? a. he experiments on live grasshoppers instead of preserved ones. b. he focuses on red-legged grasshoppers instead of all kinds of grasshoppers. c. he varies the nitrogen and carbon dioxide levels in the air from one trial to the next. d. he conducts the experiment in a controlled lab setting with a lab partner. e. he measures the mass and length of his specimens at the start of each trial.