Across
- 4. investigation of the factor that is deliberately manipulated
- 6. A investigation the factor that changes as results of manipulation of one or more
Down
- 1. procedure to study something under controlled
- 2. A system of ideas that explains many related observations and is supported by a large body of evidence
- 3. explanation that leads to scientific investigation explanation that leads to scientific investigation
- 5. Information gathered by observation or experimentation that can in used in calculating or reasoning