Groundwater and Surface Water Vocabulary

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Across
  1. 2. A small river that flows into a larger one
  2. 6. The word for rain, snow, or other precipitation filling an aquifer back up
  3. 8. Small stones that make an excellent aquifer
  4. 10. A huge aquifer underneath eight states in the middle of the USA
  5. 11. An underground layer of broken rock with the spaces filled with water
  6. 12. A fine-grained kind of soil that water can not pass through easily
  7. 13. The kind of aquifer that is trapped between two layers with low permeability
  8. 14. Small bits of rock, minerals, etc. that are carried by a river
  9. 15. The rock underneath everything that water can not pass through
  10. 16. The amount of hole space between grains of sand, gravel, etc.
  11. 20. A threat to groundwater caused by dumps or spills of hazardous chemicals
Down
  1. 1. All the land that drains into one river system
  2. 3. How easily water can move through an underground layer
  3. 4. Fan-shaped deposit of sediment at the mouth of a river
  4. 5. A hole dug down past the water table
  5. 7. Large sweeping bends in a river
  6. 9. As a contaminant moves through an aquifer and mixes with more water, THIS will decrease
  7. 17. The word for using water to grow crops
  8. 18. The flat land at the bottom of a watershed
  9. 19. Above this line the soil is dry and below it the spaces are filled with water