Aquatic Science WATERSHEDS

What does a watershed look like?

Watersheds are… A watershed, or drainage basin, collects water from rain and snowmelt and funnels it down slope into waterways such as streams, which in turn convey the water to larger rivers, lakes, playas, wetlands, estuaries, or the ocean. We all live in a watershed. Watersheds are the places we call home, where we go to school or work, and where we play.

Watersheds continued… Healthy watersheds are vital for a healthy environment and economy. Our watersheds provide water for drinking, irrigation and industry. Many people also enjoy lakes and streams for their beauty, and for boating, fishing and swimming. Wildlife also needs healthy watersheds for food and shelter. http://cfpub.epa.gov/surf/huc.cfm?huc_code =12100301

San Antonio watershed… http://www.sara- tx.org/

HINT! THINK OF WHAT HAPPENS WHEN IT FLOODS! How are different substances moved along in water as it flows through a watershed? HINT! THINK OF WHAT HAPPENS WHEN IT FLOODS!

How do streams erode their channels and transport sediment? The force of water in a stream erodes weathered rock and transports the sediment from one place to another.

How does stream deposition occur? The water flow slows down and gravity deposits the sediment.

1)Cheap land so they are willing to take the risk if flooding is rare. Floodplains can be hazardous places to live. Why do some people choose to have their homes, farms, and businesses located on floodplains? 1)Cheap land so they are willing to take the risk if flooding is rare. 2)Ignorance 3)Farmers use floodplains because the land is fertile.

How do humans impact water sheds? Polluting, Damming, Protecting, Diverting.

What watershed do you live in?

Why is your watershed important?

Why is it important to protect the health of a watershed? Recreation Drinking Crops Wildlife Conservation