What is a watershed? A watershed is defined as a geographic area that drains into a lake, stream, wetland, or other body of water. The activities that occur in a watershed greatly affect the quality of the water that passes through it. Watersheds can be large, like the Mississippi River Basin that covers thousands of square miles, or small, like the Brandywine Watershed that covers 330 square miles, or even smaller, like the land that drains into a particular wetland.
As you can see, the water follows certain paths on the paper. Can you identify the miniature watersheds you have created on the map you made? What could some of the impacts from pollution be in the watershed you created?
Adapted from: Wonderwise Women in Science Learning Series. 2000, University of Nebraska, Lincoln, Nebraska. Urban Ecologist. Click here to go to their site.
Unit 5, Lesson 2.: The Delaware River game.