Across
- 3. high altitude clouds made of ice crystals
- 5. towering dark clouds; rain on it's way
- 6. puffy cotton-ball clouds; seen on clear warm days
- 8. wator vapor in the air
- 9. an instrument used to measure air pressure
- 11. all the particles of air pressing down on the surface of the earth
- 12. the border where two air masses meet
- 13. low layer clouds; dark; sometimes bring light rain
- 15. layer closest to the earth, almost all weather happens here
- 17. an instrument used to measure water vapor in the air
Down
- 1. the atmosphere traps heat much like a greenhouse
- 2. the layer of air that surrounds our planet
- 4. instrument used to measure precipitation
- 7. contains most of atmospheres ozone
- 10. a large body of air that forms over a land mass or large body of water
- 14. an instrument used to measure wind speed
- 16. lines drawn to connect areas of the same atmospheric temperature