Across
- 2. .... process, the substance only changes its form
- 6. chemical reaction
- 8. the particles in solids and liquids are always ....
- 10. opposite of melting
- 12. some substance are mixed together and change form a new substance
- 13. a solid substance
- 14. .... wood is chemical reaction
Down
- 1. change of state
- 3. particles move slower and closer together
- 4. all matter is made up of ....
- 5. its particle are always moving
- 7. a substance that is a gas
- 9. the particles are close together but not packed in regular pattern
- 10. in a .... the particles are packed tightly together
- 11. when a liquid loses .... energy the particles slow down and move together