Across
- 2. when hot air rises and cold air falls
- 5. thin tube reaching from the cloud to the ground
- 6. very tall and large cloud
- 8. gradual increase in the average temperature of earth
- 11. thin whispy clouds
- 13. rain, snow, sleet, or hail
- 14. pressure exerted by the weight of air in the atmosphere
- 15. water vapor frozen into ice crystals
- 17. the envelope of gasses surrounding the earth
- 19. a storm of thunder, lightning, and often rain or hail
- 22. a mature tropical cyclone
- 25. a form of precipitation consisting of ice pellets
- 26. puffy, cotton ball clouds
- 27. tropical cyclone
- 28. weather condition
- 30. angular distance of a place north or south of the earth's equator
Down
- 1. when water turns into a gas
- 3. atmospheric low pressure system originating in the tropics
- 4. area where two air masses of different temperatures collide but don't mix
- 7. chunks of ice that fall from clouds
- 9. dark, low level clouds with precipitation
- 10. an instrument measuring atmospheric pressure
- 12. high level clouds, little white dots
- 16. funnel shaped cloud that causes a tornado
- 18. presence of liquid, especially water
- 20. low level cloud with horizontal layering
- 21. the scientific study of the atmosphere
- 23. a type of biome where tree growth is hindered by low temperatures
- 24. warmth, hot
- 29. moving air