Across
- 3. something that is made of the same atoms
- 6. something that can be observed about a substance
- 7. when a solid turns to a liquid
- 10. when a liquid turns to a gas
- 12. a structure built by atoms
- 13. an object or diagram
- 14. a group of atoms
- 15. an ending substance
Down
- 1. when atoms form a new substance
- 2. letters and numbers representing atoms
- 4. able to cause damage
- 5. a substance put into soil to make it
- 8. the relative size of something
- 9. the tiny pieces that matter
- 11. a substance thats part of a chemical rearrange to change the order