Across
- 5. When rain, snow, or hail comes down from a cloud
- 6. This can make up water, air, and solids
- 7. Water in a gas form
Down
- 1. Air that humans breath out
- 2. The main heat source of the Earth
- 3. How heat travels from one molecule to another
- 4. When water heats up, it ___, and turns into gas