Across
- 3. in changing the average speed of the molecules of a substance
- 5. are packed together closely
- 7. that are farather apart
- 9. water vapor changes into a liquid
Down
- 1. to a liquid or a liquid to a gas or reverses requires energy flow
- 2. defined as the amount of energy it takes to raise
- 3. of changing the phases of a substance
- 4. that are very far apart
- 6. which a liquid turns into a solid
- 8. forms from the molecule