Across
- 4. Gas changes to a liquid.
- 6. Top of saturated zone.
- 7. A lake that stores water for humans.
- 10. Pump of rising water due to pressure.
- 11. Allows water to move through materials with pores inside.
- 15. Once substance dissolves in another.
- 17. Molecules at the surface of a liquid absorb enough energy to change to the gaseous state.
- 21. Streams and small rivers that feed into a main river.
- 22. Water given off through the leaves as water vapor.
- 23. Land area that supplies water to a river system.
Down
- 1. Mixes but does not dissolve.
- 2. The build-up of lake nutrients.
- 3. Materials with large, connected pores.
- 5. A ridge of land.
- 8. Area of rock or soil totally filled with water.
- 9. Area covered with shallow water.
- 12. Tightness across surface of water.
- 13. Has electrically charged areas.
- 14. Layer of rocks and soil above the water table.
- 16. Universal solvent.
- 18. Materials that do not allow water to pass through them.
- 19. Underground area of rock that holds water.
- 20. Substances that help plants and algae grow.