Across
- 3. type of cloud that is sheet like and forms in layers
- 5. a storm with thunder, lightning, and often with heavy rain and strong winds
- 7. a large volume of air that has about the same temperature and moisture throughout
- 8. type of cloud that is light and feathery
- 11. when water falls to Earth from clouds
- 12. a device that measures rain fall
- 13. a front that forms when a cold air mass pushes underneath a warm air mass
- 14. when the dew point is below freezing and water vapor changes to ice
- 17. changing of water from a gas to liquid
- 19. a boundary between two air masses
- 21. a warm air mass that forms over warm regions
- 23. the amount of matter something can hold
- 24. the amount of water vapor in the air compared to the capacity it can hold
- 25. a tropical storm with very strong winds
Down
- 1. an instrument that measures relative humidity
- 2. type of cloud that is big and puffy
- 4. a front that forms when warm air pushes over a cold air mass
- 6. changing of water from a liquid to gas
- 9. the actual amount of water vapor in the air
- 10. a cold air mass that forms over cold regions
- 15. a violent, funnel-shaped cloud
- 16. the amount of water vapor in the air
- 18. temperature at which condensation takes place
- 20. when plants give off water vapor
- 22. when air is completely filled with water vapor
