Across
- 4. Makes up everything
- 6. number in front of compound
- 8. Having Information and making a compound or a Molecules
- 9. little number behind some elements
Down
- 1. Releasing heat
- 2. Changing the physical properties only
- 3. Change into a new substance
- 5. Absorbing heat
- 7. a part or aspect of something abstract, especially one that is essential or characteristic