Scientific Method (AP)
1. Ultimately, all scientific knowledge comes from: experimentation observation textbooks both experimentation & observation
2. A hypothesis must be: proven correct testable observed experimental
3. A scientist testing the affects of a chemical on apple yeild sprays an orchard with the chemical. A second orchard does not receive the chemical. In the fall, the number of apples harvested from each forest is counted. Which of the following is the independent (manipulated) variable in the experiment? the chemical the number of apples the first orchard the second orchard
4. The orchard sprayed with the chemical yields an average of 60 apples per tree, the other orchard yields an average of 40 apples per tree. Based on the data, the scientist would: report his data test the chemical on other plants determine that the chemical increases apple yield determine that the results were inconclusive
5. In order for the apple tree experiment to be valid scientifically, both orchards must: receive the same amount of sunlight receive the same amount of water have the same species of apple tree all of these
6. Theories help scientists to: explain large bodies of data prove hypotheses determine truth from lies propose new ideas about how the world works
7. If a theory is challenged by new evidence, which of the following could occur? the theory could be altered the theory is accepted, not the evidence the evidence is wrong a vote is taken on whether to accept the new evidence
8. All living things must: move have two parents eat food maintain homeostasis
9. The mechanism by which evolution occurs is called: creationism natural selection interdependence metabolism
10. The smallest unit capable of carrying out life functions is: a cell tissue DNA blood
Score = Correct answers:
