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Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.

Flash Instructions

Some animations on this web site use Flash. To view those animations, you must have Flash installed on your computer and set up to work with your web browser.

  • Click here to go to the Flash page on Adobe's web site. You can download the version of Flash that will work on your computer from that page. Follow the directions provided by Adobe.
  • If the link above does not work for some reason, click here to go to Adobe's home page, then follow links to their Flash download page.

The animation below uses Flash. If you cannot see two planets orbiting the Sun in the animation below, you do not have Flash installed properly on your computer and will need to get it from Adobe's web site.

Last modified May 13, 2008 by Randy Russell.

Shop Windows to the Universe Science Store!

Our online store includes fun classroom activities for you and your students. Issues of NESTA's quarterly journal, The Earth Scientist are also full of classroom activities on different topics in Earth and space science!

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF