Across
- 2. a slowly moving mass or river of ice formed by snow
- 6. allowing certain substances to pass through it but not others
- 9. the water or other material that drains freely off the surface of something
- 11. the area of land drained by a river and its branches
- 12. not allowing fluid to pass through
- 14. the cycle of processes by which water circulates through the earth
- 17. the process of turning from a liquid into vapor
- 18. the exhalation of water vapor through the stomata
- 19. an area or ridge of land that separates waters flowing to different rivers, basins, or seas
- 20. allowing liquids or gases to pass through it
Down
- 1. permeation of a liquid into something by filtration
- 3. rivers or streams flowing into a larger river or lake
- 4. a body of permeable rock which can contain or transmit groundwater
- 5. all the waters on the earth's surface
- 7. water that collects on the surface of the ground
- 8. of or found in freshwater; not of the sea
- 10. water held underground in the soil or in pores and crevices in rock
- 13. the sticking together of particles of different substances
- 15. the sticking together of particles of the same substance
- 16. the conversion of a vapor or gas to a liquid