Across
- 1. zone that is unsaturated
- 3. when water cannot pass through
- 7. water that runs off becomes…
- 9. only 3% of earth's water is…
- 10. what forms at the end of a river?
- 12. top of the zone of saturation
- 17. the higher ground between two drainage basins
- 18. where is the Santee delta?
- 20. zone that is full of water
- 21. another name for watershed
- 22. largest US delta
- 23. largest east coast delta
- 24. what must be dug below the water table?
Down
- 2. underground pocket of permeable rocks with water
- 3. where is most freshwater trapped?
- 4. water that is polluted contains…
- 5. an area of land where water is drained the same way
- 6. what happens to water that passes through soil?
- 8. what drains a watershed?
- 11. deltas have ____ ecosystems
- 13. when water moves through soil
- 14. what soil horizon is impermeable?
- 15. water that does not go into the ground
- 16. what watershed do we live in?
- 18. what chemical is found in 97% of the earth's water?
- 19. farms need water