Across
- 4. A new substance formed during a chemical reaction.
- 7. A change that cannot be easily undone, like burning paper.
- 9. A chemical change that happens to iron when exposed to oxygen and moisture.
- 10. A type of change where no new substance is formed.
- 11. A chemical change, also known as combustion, that produces heat and light. 🔥
Down
- 1. A type of change that results in one or more new substances.
- 2. The physical change from a solid to a liquid. 🧊➡️💧
- 3. The physical change from a liquid to a solid. 💧➡️🧊
- 5. A change that can be easily undone, like melting ice.
- 6. Changing food using heat, which often causes chemical changes.
- 8. A substance present at the start of a chemical reaction.