Across
- 1. a pure substance formed by different elements
- 3. something that is formed during a chemical reaction
- 7. the opposite of physical change
- 8. two atoms joined together
- 9. everything is made of what?
- 11. the opposite of chemical change
- 14. a pure substance that cannot be made into a more simple substance
- 16. a combination of substances that can be separated
- 17. the transfer of thermal energy
Down
- 2. the opposite of chemical property
- 4. when molecules of the same substance stick together
- 5. the opposite of physical property
- 6. the process that makes new substances
- 9. the amount of matter in an object
- 10. the forces that hold atoms together
- 12. the smallest unit of measurement
- 13. the amount of space that an object occupies
- 15. measures the AVERAGE amount of molecule movement