Notifications
Science Practice Test 2: The Scientific Method
1/2
A geologist has observed mineral deposits in remote sites, as far as hundreds of miles away from the source of the mineral. He believes that a river may have flooded, triggering a mudslide which deposited the mineral hundreds of miles downstream. Which hypothesis would be best for the geologist to use to guide his research?
Refer to the passage and diagram to answer the questions below.
A food web maps the flow of energy as it is introduced and moves through a community. The food web tracks this transfer of energy through the organisms found in a coral reef. The reef has recently experienced a sharp increase in its anemone population. A marine biologist researching the phenomena believes that the cause of this phenomena may be the health of the reef's crabs, which anemone prey on. She hypothesizes that an increase of crabs carrying pathogenic bacteria is contributing to high mortality rates in the anemone population.
1/3
Which of the following would provide the best test of her hypothesis?
Refer to the scatter plot and passage to answer the questions below.
An instructor notices that students seem to struggle to focus and lose engagement in May, as the temperatures begin to rise. She wonders if room temperature has an effect on academic performance. Over the course of the school year, she records the classroom temperature each time she administers a test to one of her classes. She then creates a scatter plot to determine if there is a correlation between student test scores and the temperature of the testing room.
