Across
- 5. mg,ir,h,o,cl
- 6. smallest unit of matter
- 7. heat of something
- 9. heat releasing
- 11. elements combining together
- 12. anything that takes up space
- 15. heat absorbing
- 16. solution of more than one elements
- 17. a product of mixing
- 18. ability to work or be active
Down
- 1. smallest part of a substance
- 2. amount of space used by matter
- 3. liquid,solid,gas
- 4. molecules trying to stick together
- 8. elements change when combined with another in a reaction
- 10. study of matter and chemicals
- 13. temperatures
- 14. A process where elements combine for a chemical _