Across
- 1. layer of gases surrounding the Earth
- 3. a tool that measures air pressure
- 4. rain, snow, sleet, or hail
- 7. to get bigger
- 10. energy moving from one place to another
- 11. lines that represent air pressure
- 12. air in motion
- 14. the amount of matter in an object
- 15. air moves from high to low pressure
- 16. anything that has mass and volume
Down
- 2. an atom or molecule
- 5. to push together
- 6. the energy of motion
- 8. possible energy
- 9. a scientist who studies weather
- 13. amount of mass per unit of volume