Across
- 1. immovable
- 5. bursting matter
- 7. portion of matter
- 8. water vapour
- 11. air
- 14. growth in a substance
- 15. corrosive Chemical
- 17. you find it at the beach
- 18. degree of sound
- 19. invisible vapour
Down
- 2. watery
- 3. heavy metal
- 4. squeezed
- 6. bubbles in water
- 9. collects metal
- 10. freezing
- 12. easily shattered
- 13. H2O
- 16. burning temperature
- 20. split this to make a bomb