Watershed: Lesson 2 - Mapping our watershed


Lesson 1: What is a watershed?

Lesson 2: Mapping your watershed

Group e-mail

Watershed Bulletin Board Chat



Introduction / Invitation | ExplorationExplanation | Taking Action | Conclusion

Introduction:

Watershed are important for all areas and all people. Watersheds affect drinking water supplies, streams, lakes, and rivers. Watersheds also affect how water flows over the surface of the land and if an area will possibly flood.

In order to understand our water supply, we need to know where our water comes from, how water moves through our watershed, and where the water goes when it leaves our watershed.

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Invitation:

Objective: To map the watershed in your area and then learn where the water enters the watershed and where the water goes when it leaves the watershed.

Materials: 
Computer with Internet access
Topographic map of your watershed area
Mylar sheets - tracing paper - clean plastic (such as a over head sheet)
Dry erase markers and permanent markers

Go to the web sites listed below and find the maps and information for the watershed in your area. Take a moment to look at watersheds in other areas to compare them to your watershed.

For watershed areas in Russia: 
1. Baltic area watersheds and maps
2. Examine different aspects of environmental factors for watersheds in the Baltic region

For watershed areas in the United States:
1. US Environmental Protection Agency water maps
2. United States Geologic Survey state watershed maps

Discuss the information in your groups, your class, or with your friends and teachers. Click here to use the Group e-mail.

Post the information from your survey on the Watershed Bulletin Board. Be creative and be sure to tell us what you learned from mapping your watershed.


Exploration:

Use the maps you have found and clear overlay sheets to map the watershed in your area.

Use the worksheet handout titled, "Mapping your watershed" from page 6 of the book, "Give water a hand".

Describe the water sources in your watershed and post your findings on the Watershed Bulletin Board.

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Explanation:

Watersheds are important to everyone all around the world. The maps you have made show the watersheds in your area and probable areas of other watersheds which surround your watershed.

As you look at the map you have made can you explain how your watershed works?
1. How does the water move through your watershed?
2. What are the names of the streams and rivers that carry the water through your watershed?
3. What is the land area like in your watershed? Where will the water flow?
4. Does this land have plants growing? What types of plants and how do they help the watershed?
5. What types of human structures are on the land in your watershed? How might they affect the water and its 
    movement of the water in your watershed?

Post your ideas, presentations, pictures, or other information on the Watershed Bulletin Board!
Click here to use the Group e-mail.

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Taking Action:

Further investigate the possible areas of pollution and harm for the areas in your watershed.

Note these areas on your maps. Explain what the problems are and how they will affect the water and the watershed.
Click here use the Group e-mail?

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Conclusion:

You have seen the sources and flow of water through your watershed. You have also learned how watersheds function and how humans affect these watersheds. Do you feel your watershed needs to be studied further? If so why?

What can you do to monitor these areas to learn how they affect the watershed?

Post the ideas you believe are important about your watershed and post these on the Watershed Bulletin Board!

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