Across
- 2. high altitude clouds; made of ice crystals
- 3. an instrument used to measure precipitation
- 6. water vapor in the air
- 7. an instrument used to measure water vapor in the air
- 8. the layer of air that surrounds our planet
- 9. clouds towering dark clouds; rain on its way
- 11. water is stored in lakes, rivers, and oceans
- 13. a large body of air that forms over a land mass or large body of water
- 14. water falls to the ground in the form of rain, sleet, snow and hail
- 15. an instrument used to measure wind speed
- 16. water vapor in the atmosphere condenses to form clouds
- 18. the border where 2 air masses meet
Down
- 1. an instrument used to measure air pressure
- 2. puffy cotton-ball clouds; seen on clear, warm days
- 4. all the particles of air pressing down on the surface of the earth
- 5. low layer clouds; dark; sometimes bring light rain
- 10. water that flows over the ground
- 12. plants release water as a gas
- 17. water changing from liquid to a gas