Across
- 2. wind moves great distances over the globe
- 4. water flowing down a mountain
- 6. high level clouds
- 9. the driving force of weather
- 10. A boundary between two air masses
- 12. instrument used to measure temperature
Down
- 1. happy weather
- 3. weight of the air above the surface
- 5. horizontally moving air
- 7. changes as air pressure changes
- 8. instrument that measures air pressure
- 11. a rain cloud