Across
- 1. can be observed about a substance, such as color, smell, or boiling point
- 3. chemical reaction in which heat energy is absorbed
- 10. able to cause damage
- 11. temperature at which a liquid changes to a gas
- 12. smallest unit of matter
- 14. process that changes one set of chemicals into another set of chemicals
- 15. a change in state of matter where no new substances are formed
Down
- 2. Chemical reaction in which energy is primarily given off in the form of heat
- 4. temperature at which a solid becomes a liquid
- 5. combo of chemical symbols and numbers to represent a substance
- 6. undergoes change during a reaction
- 7. to change the position of something
- 8. matter with a composition that is always the same atoms or same groups of atoms
- 9. forms in a chemical reaction
- 13. speeds up the rate of a chemical reaction
- 14. A change in matter that produces one or more new substances