This interactive resource adapted from the National Park Service explains the difference between explosive or effusive (lava pours from a vent onto the ground) volcanic eruptions, and describes the hazards associated with each type of eruption. Full description.

Through an electronic peer review assignment, students write a general summary of major hazards to humans in the vicinity of volcanoes. Then, students are provided a list of volcanoes and must choose one to determine what actions they would take to minimize the risks to a population. This activity is detailed on this Starting Point site, which includes its learning goals, context for use, teaching ... Full description.

This homework exercise, which builds on knowledge gained in previous homework exercises located at the same site, asks students in an undergraduate class at Tulane University to answer some basic questions about volcanoes, and to determine the volcanic hazards associated with Mt. Rainier, Washington; Montserrat, West Indies; and Long Valley Caldera, California by searching the World Wide Web. Full description.

This site contains three radio broadcasts discussing: the Parkfield, California earthquake of October 2004; the Mount Saint Helens volcano; and the shortage of flu vaccine in 2004. The 15 minute Parkfield broadcast explains how the Parkfield earthquake was the most monitored earthquake in history. Scientists are studying the San Andreas Fault in the area. Data collected from the recent earthquake ... Full description.

Follow ocean explorations in near real-time, learn about ocean exploration technologies, observe remote marine flora and fauna in the multimedia gallery, review NOAA's 200-year history of ocean exploration, and discover additional NOAA resources in a virtual library. View current expeditions or take a look back at the archived ones. Most expeditions feature fact sheets, photographs, explorer logs, ... Full description.

These activities pertain to the value of the different types of images, including a false color mosaic, a Compressed Stokes image, a vegetation map and key, and various ground photographs. Students are given specific directions on how to decide what features of a radar image indicate such structures as upland forest, clear-cut areas, and roads. In a second activity, students look at the radar images ... Full description.

This site from SERC's Starting Point features Gallery Walk questions about volcanism. The questions examine terminology, the relationship between magma viscosity, explosiveness, and volcano profile, volcano comparisons, volcanoes and plate tectonics, relationships between volcanic activity and the atmosphere, biosphere, and hydrosphere, and disaster mitigation. The questions are organized according ... Full description.

This section of VolcanoWorld contains details about the Mt. St. Helens volcanic eruption of 1980. Photos, personal accounts, and scientific information provide a look at before, during, and after the 1980 eruption. There is a section covering the eruptive history of the mountain, as well as the ongoing effects of the 1980 blast on the people, landscape, and wildlife of the area. A description of the ... Full description.

This Web site brings together scientific content on Earth and space sciences with interdisciplinary content on the arts and humanities. Three levels of content are provided: students (K-12 through undergraduate), teachers, and browsing adults. The site includes documents, images, movies, animations, sounds, games, and data. Full description.

This clearinghouse features an extensive selection of maps, imagery, news articles, and other Earth science resources. Highlights include an interactive map of meteor impact structures, an interactive map showing the highest points in the 50 states, and a state-by-state directory of imagery, maps, and links to geological information. There are also listings for imagery for U.S. cities and the continents, ... Full description.