Across
- 3. the starting substance in a chemical-
- 5. process when atoms rearrange
- 6. image or diagram
- 9. Tiny pieces that all matter is made of
Down
- 1. something made of the same atoms/group
- 2. atoms grouped together in a certain way
- 4. substance written in letter and
- 7. atoms
- 8. something observed about a substance