This article, entitled Mountains of Fire, describes the relationship between the types of volcanic activity and plate movement and the connection between types of volcanoes and how they erupt. The article is supported by a video of an erupting volcano, a photograph of an eruption and an animation depicting pyroclastic flow and the formation of a composite volcano. It is also supported by three sidebars, ... Full description.

This activity has students compare maps of plate tectonics with population density maps and to analyze what these maps imply about the relationship between population and seismic hazards. Students will read about and discuss the theory of plate tectonics, map the regions of the United States that are most susceptible to earthquakes and those that have volcanoes, and list the states that lie on plate ... Full description.

This volcanic mountain building unit was designed to be used with a college course in physical geography. Subjects covered in this module include: the relationship between plate tectonics and igneous activity, intrusive and extrusive igneous activity, the products of volcanic activity, the relationship between types of volcanoes and magma composition, and a special section devoted to the eruption ... Full description.

This is the Student Page of an activity that teaches students how and why magma moves inside volcanoes by injecting colored water into a clear gelatin cast. The Student Page contains the activity preparation instructions and materials list, key words, and a photograph of the experimental setup. There is also an extension activity question that has students predict what will happen when the experiment ... Full description.

This is the Teacher Page of an activity that teaches students how and why magma moves inside volcanoes by injecting colored water into a clear gelatin cast. Activity preparation instructions are on the Student Page, while the Teacher Page has background, preparation, and in-class information. An extension activity has the students repeat the experiment using a square bread pan to simulate the original ... Full description.

This site includes information on volcanoes within the United States. Special sections with abundant photographs are provided for Hawaii, Alaska and the Cascade Range. Full description.

This page provides the answers to frequently asked questions about volcanoes. It is created by the United States Geological Survey. Topics addressed include: What Is A Volcano? Why Do Volcanoes Occur? How Do Volcanoes Erupt? Where Do Volcanoes Occur? When Will A Volcano Erupt? How Hot Is A Volcano? Can Lava Be Diverted? Do Volcanoes Affect Weather? What Types of Volcanoes are There? Which Eruptions ... Full description.

This lesson will help to acquaint students with the characteristics and effects of volcanic activity. In addition to Internet research, students will conduct experiments on fluid viscosity as it relates to lava and the volume of ejecta produced by a volcano. They will explore how plate tectonics relates to volcanoes, and how volcanoes are formed. They will be able to list the parts and several characteristics ... Full description.

This portal provides links to an extensive list of volcano-related websites for the United States and around the world. Users can access articles, maps, glossaries, webcams, a dictionary of volcanoes, and many other resources. Full description.

This site describes the variability of eruption types, from quiescent lava emissions to extremely violent and explosive events. Eruption variability is largely related to magma composition and the amount of water present. Types of eruptions discussed include fissure and Hawaiian eruptions, which are characterized by fire fountains and lava lakes, strombolian eruptions as exemplified by Paricutin in ... Full description.