Across
- 3. an argument that scientists
- 5. the group that doesn’t receive the treatment
- 6. the variable you observe or measure
Down
- 1. a series of steps used when testing scientific questions
- 2. the variable you alter or mess with
- 4. able to vary or subject to change
- 5. the variable that has to stay the same
- 7. the group that receives the treatment