What is a watershed?

Watershed:

• The area of land that drains into a river system is known as a watershed.

http://www.youtube.com/watch?v=ofTdglXriug

What is Groundwater?

Groundwater is water that is located underground.

In fact, half of everyone in the United States drinks groundwater everyday!

Groundwater is even used to irrigate crops which grow food for tonight's dinner.

Watershed DiagramThe area of land that drains into a river system.

Our Virginia Watershed Areas• A watershed can be found

almost anywhere. It is defined as the flow of water from a high to low place, over or under land.

• Whenever you see a creek, stream, river, delta, lake or ocean you see a part of the watershed.

Agricultural Runoff

• Agricultural runoff includes pesticides, animal waste, salts, fertilizers, decomposed food, and trash or plastics used in running the farms or ranches.

Urban (city) Runoff

• Urban runoff is another leading causes of bad water quality. Water from lawns with fertilizer, trash, oil from cars, factory pollution, or a/c waste absorbs into the ground.

Threats like those produced from agricultural runoff and suburban

sprawl are destroying our clean water, the animals and plants that live in or

near the water.

http://www.cleanwatermn.org/Resources/Video---Voice.aspx

http://player.discoveryeducation.com/views/hh_httpView.cfm?guidAssetId=9b2f7923-d824-42c7-a7f7-a35cced7ce52

New Vocabulary:Estuary

Tributary

Wetlands

Erosion

Aquifer

Point-pollution

Non-point pollution

Words to KNOW:

• Ecosystem- all living and non-living things that interact in a particular area.

Biotic factors:All living organisms

Examples: animals like geese, ducks, foxes (other species) & plants including moss or algae

Abiotic factors:All non-living things

Examples: rocks, soil, sunlight, water, oxygen, temperature, salinity

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http://videos.howstuffworks.com/discovery/30707-assignment-discovery-abiotic-and-biotic-factors-video.htm

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Food Chains

http://www.youtube.com/watch?v=LJ63xGJY4pM

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