Across
- 2. a natural movement of air of any velocity
- 5. uniform, flat, grey clouds
- 6. cauliflower-shaped clouds
- 7. an instrument for measuring temperature
- 9. water vapor frozen into ice crystals
- 11. measures the speed of the wind
- 13. forms about 78 percent of the earth's atmosphere
- 14. any form of water that in the atmosphere that falls back to earth
Down
- 1. a high wispy white clouds
- 2. the boundary between a mass of warm air and a retreating mass of cold air
- 3. a long period of time when there is little/no rain.
- 4. an instrument measuring atmospheric pressure
- 8. condensed from the atmosphere that falls in separate drops.
- 10. The forward edge of an advancing mass of cold air that pushes under a mass of warm air
- 12. forms about 21 percent of the atmosphere