Across
- 4. measurement to change
- 5. lessen
- 7. heat
- 9. burning
- 11. cramp
- 13. degrees
- 15. Complex energy
- 16. rotting
- 18. Area exterior
- 19. rust
- 20. unsolvable
- 21. Electron outer shell
Down
- 1. substance
- 2. combination
- 3. Chemical Reaction react together
- 6. focusing
- 8. Chateliers Principle effect
- 10. replacement Reaction display
- 12. force
- 14. motivation
- 15. energy
- 17. frequency