2D. Watersheds And River Basins


Tasks to be completed:

  1. Complete Streamers activity
  2. Complete the “What is a Watershed” video


  • n/a

Streamer Activity:

For this activity, you will be using the streamer application from USGS.  Click here to open the application.




  • Headwaters – a river’s source of water; starting point of a river
  • Continental Divide – a drainage divide on a continent where precipitation and water flow on one side of the divide feeds into one ocean or sea, and the precipitation on the other side either feeds into a different ocean or sea
  • Estuary – the tidal mouth of a large river, where the tide meets the stream
  • Tributary Streams – streams that streams flow into one another to make larger streams. Larger streams join to form rivers.
  • Ridgeline – is the top edge of the mountain that divides one watershed from another
  • River Basin – an area of land where precipitation collects and drains off into a large river
  • Watershed – an area of land where precipitation collects and drains off into a common outlet, such as into a river, stream, lake, ocean or other body of water


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  • Ambrette Gilkey - January 6, 2021

    Streamers is a helpful and fun tool to help understand a watershed. Highlighting where I live helps me to see my relationship to the rest of the watershed and relate to the larger perspective. I can see this being a very helpful tool with students understanding a difficult somewhat abstract topic when trying to explain that our water goes to the ocean. I know that understanding that we are part of a larger picture is sometimes easy to forget and difficult to learn at first. I like how this will tie into seeing how pollutants will affect a larger area than we think.
    I also appreciate the visual pattern of the watershed and would like to relate that to other similar patterns.

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