Across
- 2. capable of flowing freely, for example, water
- 3. rain, hail, snow
- 4. to change from a liquid to a gas
- 5. the force that causes things to fall to Earth
- 6. chemicals and other materials discarded by human
- 7. an air like fluid that expands
Down
- 1. to change from a gas to a liquid
- 4. the act of changing a liquid into a gas