Across
- 2. – ice melts
- 3. grapes ferment
- 5. wood burns
- 10. egg cooks
- 14. acid reacts with base
- 15. – wet clothes dry
- 16. – water boils
- 17. metal corrodes
- 19. fruit rots
- 20. bread rises
Down
- 1. – sugar dissolves
- 4. – mothballs disappear
- 6. – water freezes
- 7. – steam becomes droplets
- 8. – ice is crushed
- 9. gasoline burns
- 11. sliced apple browns
- 12. – paper is cut
- 13. salt mixes with water
- 18. iron rusts