Across
- 4. used as a standard of comparison
- 5. a factor in an experiment that can change but does not change
- 8. a factor in an experiment which the experimenter changes on purpose
Down
- 1. an educated guess based on prior knowledge, observation, and research
- 2. any factor in an experiment that can change
- 3. a test or investigation conducted under controlled conditions
- 6. in an experiment, the factor that reacts to change and gets measured
- 7. a logical outcome or result based on a reason