Across
- 2. changes the form of a chemical substance
- 5. two atoms forced together
- 6. an attraction between molecules
- 8. to do work
- 9. process that absorbs heat or thermal energy
- 11. space occupied by a sample of matter
- 12. average kinetic energy
- 13. Takes up space
- 14. a combination of two or more substances
- 15. speeds up chemical reactions
- 16. change Chemical transition
Down
- 1. pure substance that cannot be broken down
- 2. a substance formed as the result of a chemical reaction
- 3. smallest unit of matter
- 4. Makes up smallest unit
- 7. natural science
- 8. releases heat or energy
- 10. the amount of matter in an object