Across
- 3. a condition that must be met
- 4. the boundary of a model
- 7. information gained from observing and testing an experiment
- 8. a prediction or educated guess that can be tested
- 9. Investigation a fair test of an idea or method
Down
- 1. the variable in an experiment that remains unchanged
- 2. Test a test that controls all but one variable when attempting to answer a scientific question
- 5. a characteristic of a model that is useful or helpful
- 6. a condition in an experiment that can be changed