1. Unit 5 Chapter 11: Water Rippling Water (Basic)
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2. Surface Water Fresh water on earth’s surface
(lakes, rivers, streams, and wetlands)

3. River System
A flowing network of rivers and streams draining a river basin.

4. Watershed
area of land that drains into a river

5. Groundwater
Water beneath the earth’s surface in sediment and rock formations.

6. Aquifer
underground formation that has groundwater in it

7. Porosity
The percentage of the total volume of a rock that has spaces (pores).
Non porous rocks
Porous rocks

8. Permeability (permit)
The ability of rock or soil to allow water to flow through.

9. Recharge Zone
An area in which water travels downward to become part of an aquifer.

10. Potable
Safe to drink.

11. Pathogen Organisms that cause illness or disease.
(bacteria, viruses, parasitic worms)

12. Dam
A structure built across a river to control the river’s flow.

13. Reservoir
An artificial body of water that usually forms behind a dam.

14. Desalination
The process of removing salt from salt water.

15. Water Pollution
contamination of water by waste matter or other material that is harmful to organisms that are exposed to water.

16. Point-source Pollution
Pollution that comes from a specific site.

17. Nonpoint-source Pollution
Pollution that comes from many different sources.

18. Wastewater
Water that contains wastes from homes or industries.

19. Artificial Eutrophication
Process that increases the amount of nutrients in a body of water through human activities.
(waste disposal and land drainage)

20. Thermal Pollution When the temperature of a body of water increases.
(lake, stream)

21. Biomagnification
The buildup of pollutants at higher levels of the foods chain.