3.  Identify and discuss the users of water.  List the types of water pollutants.  Discuss ways to treat water for use.  Explain the importance of planning for future water needs.

4.  Why do we need to know about the hydrologic cycle?  Why is water so important?  Why do we need to know about different types of pollutants?  Why do we need to know how to treat water?  Why should we try to conserve water?

5.  What is the hydrologic cycle?  What are different uses for water?  What are different types of pollutants?  What do we use to treat water?  What is water conservation?

6.  Water: a colorless, transparent, naturally occurring compound made of hydrogen and oxygen. (H 2 O)  Hydrologic cycle: The water cycle  Groundwater: The water beneath the surface of the earth, found in spaces between rocks and soil particles.  Surface Water: Water on the earth’s surface. (Lakes, ponds, and streams)

7.  Runoff Water: Water that runs on the earth’s surface.  Potable Water: Water that is appropriate for human consumption without further purification or boiling.  Aquifer: An underground stream or pool in sand or gravel layers.  Watershed: An area of land from which all the water that does not infiltrate the sol runs to a downhill location.

9.  Agriculture  Urban  Industry

10.  Animal feedlots Irrigation Cultivation Pastures Dairy farming Orchards Aquaculture  Forestry

11.  Carwashes  Laundry  Watering yards/plants  Showers/Baths

12.  Pollutants from industrial sources include:  Asbestos –carcinogenic. mesothelioma, lung cancer, intestinal cancer and liver cancer.  Lead –can cause health and environmental problems. It is a non-biodegradable substance so is hard to clean up  Mercury –non-biodegradable substance so is hard to clean up,mercury poisoning.  Nitrates – The increased use of fertilizers means that nitrates are more often being washed from the soil and into rivers and lakes. can cause eutrophication,  Phosphates - The increased use of fertilizers means that phosphates are more often being washed from the soil and into rivers and lakes. This can cause eutrophication  Sulphur – This is a non-metallic substance that is harmful for marine life.  Oils – Oil does not dissolve in waterThis can stop marine plants receiving enough light for photosynthesis. It is also harmful for fish and marine birds.

13.  Pesticides  Animal Waste  Sewage  Sediment

15.  Don’t let water run while brushing teeth.  Taking showers instead of baths.  Using rain water for watering plants instead of drinkable water.  Fix dripping or leaking pipes and faucets.

16.  What is the hydrologic cycle?  What are different uses for water?  What are different types of pollutants?  What do we use to treat water?  What is water conservation?