Across
- 4. stream or river that flows into a larger river
- 7. land area that supplies water to a river
- 9. characteristic of a material that contains connected air spaces, or pores, that water can seep through easily
- 10. lake that stores water for human use
- 11. characteristic of materials, such as clay and granite, through which water does not pass
- 12. well in which water rises because of pressure within the aquifer
Down
- 1. layer of rocks and soil above the water table in which the pores contain air as well as water
- 2. area of permeable rock or soil in which the cracks and pores are totally filled with water
- 3. build up over time of nutrients in freshwater lakes and ponds that leads to an increase in the growth of algea
- 5. top of saturated zone, or depth to the groundwater under Earth's surface
- 6. ridge of land that separates one watershed from another
- 8. underground layer of rock or sediment that holds water