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e-Journal

Sierra (p. 191)


Step 1. Questions

The Sierra Nevada Mountains may seem unaffected by wind and rain. Yet if the mountains could talk, they would tell you that these forces and others are slowly breaking them down.

Write a response to the poem "Sierra" on page 191 of your textbook. Begin by researching weathering. Here are some questions to guide you:
  • How do rocks change over time?
  • What is weathering?
  • Why does weathering occur?
  • How does weathering affect mountains?
  • How did the poem help you to understand the process of weathering?
Are you ready? Begin by visiting the Web sites listed in Step 2. Look for the answers to the questions above, and write down what you learn in the note-taking boxes.

You may use search engines to research other Web sites. Or research weathering in the library. When you are ready, follow Steps 3 and 4 to write your response.


Step 2. Research

Research answers for the questions you were asked in Step 1. Visit these Web sites. Take notes about them on this page, too!


Toolbox Tip: Click here to find out how to use search engines to find information.


Sierra Nevada Mountains
This Web page is part of a larger Web site of Yosemite National Park. The Sierra Nevada Mountains are a part of the Park. Click any of the underlined words within the text for definitions of geological terms, including WEATHERING. Be sure to follow all the links on the left for more information on how these mountains were formed and continue to change.
Take Notes:



Weathering and Erosion: What's the Difference?
This Web page explains what weathering is and how it is different from erosion. Look for the two main types of weathering. The Web site is provided by the U.S. Geological Survey.
Take Notes:



Weathering
This Geography4Kids Web site explains the different kinds of weathering and what they look like. Read the captions under the pictures to find out what is happening in the pictures.
Take Notes:



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