Across
- 3. what is the flow of energy
- 5. change the change that transforms chemicals
- 6. speeds up chemical reaction
- 8. the ability to work
- 10. result of chemical reaction
- 12. small group of two or more atoms
- 16. what is the natural branch of science
- 17. building block of matter
- 18. the force of two molecules
Down
- 1. change what alters appearence
- 2. what takes up space or weight
- 4. what substances introduce
- 7. how hot or cold something is
- 9. holds atoms together
- 11. two or more substances combined
- 13. the reaction from chemicals
- 14. intreads or transforms
- 15. what is the quantity of matter