Across
- 3. water that is free of dissolved salts
- 9. Sandusky is located on the shores of Lake
- 13. largest bodies of freshwater in the world
- 15. does not allow water to pass through
- 17. an area of land that drains to a body of water
- 18. 71% of Earth's surface is covered in
- 19. large area of groundwater
- 20. most of Earth's freshwater is trapped in:
Down
- 1. one of the 3 largest river systems
- 2. water found beneath Earth's surface
- 4. network of interconnected streams & rivers
- 5. fresh water found above the ground
- 6. the Ohio River is part of this river system
- 7. area below Earth's surface that is saturated
- 8. the Amazon River flows across this continent
- 10. used to obtain water from the ground
- 11. most of the water available on Earth contains
- 12. allows water to pass through
- 14. where water percolates down to groundwater
- 16. amount of holes in a rock