Across
- 4. frozen raindrops falling from clouds
- 5. one of two chemicals used to treat water before its used
- 6. clouds that are high altitude; thin, wispy, and white
- 9. clouds that are considered to be mid-altitude clouds. They look like small, puffy balls
- 10. rain, snow, sleet, or hail
- 11. low altitude clouds that cover the whole sky
- 14. dew forms during which part of the water cycle
- 15. of the earth that is covered by water
- 17. water that fills spaces between rock and soil
- 19. carry warm water toward the poles
- 20. largest/Deepest ocean on earth
- 22. this type of cloud touches the ground
Down
- 1. a process in which ice changes directly from a solid to a gas
- 2. a lake that forms behind a dam
- 3. when air moves upward to areas of less air pressure, what often forms?
- 7. forms when a large piece of ice breaks off a glacier or ice sheet
- 8. Rivers, lakes, and streams
- 12. top level of groundwater in an aquifer
- 13. a measure of how salty the water is
- 16. all the water on the earth
- 18. layer of rock and soil that hold the groundwater
- 21. sometimes, water vapor on a surface may freeze without first becoming liquid water. What forms when this occurs?