Across
- 2. gas changes to liquid
- 4. wispy clouds made of ice crystals
- 6. amount of water vapor in the air
- 7. wind caused by landforms
- 8. rising warm air brings stormy weather
- 11. sinking cool air brings nice weather
- 13. air masses cause rain for several days
- 17. lowest layer of Earth's atmosphere
- 18. third layer of Earth's atmosphere
- 19. Outer layer of the Earth's atmosphere
Down
- 1. strong winds in the troposphere
- 3. gases that surround earth
- 4. cold air moves in under warm air mass
- 5. puffy clouds with fair weather
- 9. water changes from liquid to gas
- 10. Lower part of thermosphere
- 12. second layer of Earth's atmosphere
- 14. dark clouds that bring rain
- 15. outer layer of thermosphere
- 16. warm air mass replaces cold air mass