Across: 2. Any factor that can exist in different amounts 3. Viewing or noting a fact for some scientific purpose 4. A method used in finding solutions to certain problem 5. Variable that remains constant in an experiment 8 Data expressing a certain quantity amount or range Down: 1. Variable observed in an experiment 6. Conclude information from evidence and reasoning 7. An act of proceeding in any action or process 9. Possible solution to the problem​