Across
- 3. make or become liquified by heat
- 5. smallest unit of a substance
- 7. form of energy transferred between two objects with different temperatures
- 11. a principle stating that mass cannot be created or destroyed.
- 13. process of turning from a liquid into a vapor
- 14. make or become solid or hard
Down
- 1. to turn a liquid into a solid due to extreme cold
- 2. anything that has mass and volume
- 4. a metric unit of mass equal to one thousandth of a kilogram
- 5. the amount of matter in an object
- 6. properties tell you the types of changes the matter can undergo
- 8. atoms are tightly packed and vibrate in place
- 9. atoms expand to fill a container
- 10. atoms touch, but can slide past each other
- 12. the degree of heat or cold present in an object