Across
- 4. point the temperature where something melts
- 6. there is no visual difference between the substances
- 7. number the number of protons in an atom
- 10. Change a change that doesn't affect the makeup of an object
- 12. system a system where no gas is lost into the atmosphere
Down
- 1. smallest unit of life
- 2. point the temperature where something boils
- 3. an object that doesn't move heat through it well
- 5. Change an irreversible change to an object
- 8. system a system where gas in lost into the atmosphere
- 9. an object that transfers heat well
- 11. you can see all parts of the mixture