US Geological Survey
Us Geological Survey: How Hawaiian Volcanoes Work
This page from the US Geological Survey has several links to pages that explain the formation of volcanoes. These links will also explain the creation of new land and other hazards.
Wikimedia
Wikipedia: Devils Tower
Both geological and historical aspects of the Devils Tower National Monument in Wyoming are covered on this website.
PBS
Pbs Teachers: Scientific American: Science Italian Style: Eruption!
Research Mt. Vesuvius and scientists' preparations for a future eruption. Produce a television program about volcanoes for middle school students as part of a public information campaign to inform citizens of Washington State about Mount...
Oregon State University
Volcano World: Devil's Tower National Monument
A brief description of Devil's Tower National Monument in Wyoming. Information for this site was provided by the National Park Service.