Visit the following websites.

• The Earth's Atmosphere http://earthguide.ucsd.edu/earthguide/diagrams/atmosphere/index.html

• Vertical Structure of the Atmosphere http://okfirst.mesonet.org/train/meteorology/VertStructure.html

• Atmospheric Structure http://www.windows2universe.org/earth/Atmosphere/layers.html

Choose the one that you think is the best, based on information included and clarity of ideas. Write a paragraph describing it (this is called an annotation). Cite the reasons that the site seems credible (is the information accurate, has it been and will it be kept up-to-date, who is the sponsor of the site?) and why you like it. Paragraph Template: Name of Website: URL: One paragraph annotation including:

1. General description of site

2. Credibility of site including Author and/or sponsor of site Currency of information Accuracy of information

3. Why you think it's the best site

4. What you didn't like about the site.