How much water do you use a day? • Quickly answer the handout that you have received with your best guesses. • We will make a class water usage footprint by using this website: • http://environment.nationalgeographic.com/environment/freshwater/change-the-course/water-footprint-calculator/ • How many gallons of water do you think the average person uses a day in America? (Discuss in small groups)
Cedar River Watershed • The Cedar River Watershed is the land area where rainwater drains into the Lake Washington and eventually meets the sound by passing through the Ballard locks.
Wildlife • Home to 88 species of fish and wildlife • 14 species are close to being endangered. • Sockeye salmon and Chinook salmon. • Some of the best salmon habitat in Washington!
Cedar River Watershed - Place • Physical characteristics: • Starts in Cascade Mountain Range • Flows into Lake Washington • A large amount of water seeps into the ground making an aquifer. • Human Characteristic: • Provides water to 22% of Washington’s population.
Aquifers • Water seeps into ground and causes water to pool. • Tapped for wells, or water returns to surface as springs.
Invasive Species in the CRW • Invasive species are plants and animals that are non-native to the area. http://www.youtube.com/watch?v=-OyGHH_LG2A&noredirect=1 • Talk in your table groups, what does non-native mean? • How might non-native species affect an environment? http://www.youtube.com/watch?v=1ddKDCwfZTs&noredirect=1
Ecological Preserves • Land protected and managed in order to preserve a particular type of habitat and its flora and fauna, which are often rare or endangered. • Talk in table groups, • Have you ever been to an ecological preserve? Where? • Why are ecological preserves important?
Natural Filtration • The CRW is one of the largest watersheds in the country that naturally filters its water. • A lot of watersheds that are used as drinking water sources need specially fabricated filtration systems. • With chemicals at filtration plants. • Talk in table groups, • What’s raw water?
Reservoirs • Reservoirs are used to store water, usually drinking water. • Created by dams. • Water routed to cities by pipelines.