Across
- 2. — The state of matter ice cream starts in
- 7. — The state of matter melted ice cream becomes
- 8. — A very reactive metal (forms table salt)
- 11. — Breaking down of rock caused by water, ice, or wind (8,10)
- 12. — Solid, liquid, or gas
- 13. — Substances in the body that cause chemical changes in food
- 15. — A change where a substance keeps its identity (8,6)
- 16. — When water turns into ice
- 17. — The change from solid to liquid
- 19. — What happens to water when it freezes in cracks
- 20. — A change that forms one or more new substances (8,6)
Down
- 1. — One thing that can change in a physical change
- 3. — The gas that reacts with iron to form rust
- 4. — The metal that rusts
- 5. — The process of breaking food down in the body
- 6. — The substance formed when iron reacts with oxygen
- 8. — What changes when an object is broken or crushed
- 9. — A poisonous green gas (group 7)
- 10. — The breaking down of rocks and surfaces over time
- 14. — The safe substance formed from sodium and chlorine
- 18. — When substances change into new substances