Across
- 2. part of experiment that changes
- 7. changes in environment
- 8. oxygen
- 9. proven hypothesis
- 10. part of experiment that stays the same
- 12. balance
- 13. Method logic/procedures
Down
- 1. reaction
- 3. characteristics the allow survival
- 4. surroundings
- 5. life from life
- 6. educated guess
- 11. sodium
- 14. basic unit of life
- 15. iron