The Smithsonian Institute presents a searchable database on volcanoes of the world. Search by region, volcano name, or eruption date. There is also a chronological list of large eruptions during the last 10,000 years.

[Free Registration/Login may be required to access all resource tools.] The composition of magma affects the type of volcanic eruption.

Scientists have determined that the earthquakes preceding volcanic eruptions are different than those that precede earthquakes. Discover the sounds and wave patterns produced by the three different types of volcanic seismic activities.

Site from the U.S. Geological Survey provides a brief list of volcano terminology including descriptions as well as links to major menus.

In this virtual field trip find out about how volcanoes are formed and what kind of destruction can they cause. Discover how volcanoes affect our environment and where can you find active volcanoes on earth and on other planets.

This graphical and textual journey about the US volcanoes was made by Steven Brantley. There is an introduction, volcanoes and plate tectonics, Hawaiian volcanoes, cascade volcanoes, restless volcanoes, a glossary and further readings.

[Free Registration/Login may be required to access all resource tools.] The composition of magma affects the type of volcanic eruption.

This site explains what a volcano is by looking at the features, types, and the location of volcanoes The site also looks at some case studies for further information.

This lesson explores the impact of volcanic eruptions on the atmosphere. Young scholars will analyze three types of visual information: a graph of aerosol optical depth v. global temperature, a global map with temperature anomalies, and...

This lesson will provide models or diagrams that explain how volcanic eruptions occur, and discuss their impact on living things. It is 5 of 5 in the series titled "Volcanoes."

Clearly labeled diagram of a volcanic eruption, with a focus on the hazardous effects of landslides, pyroclastic flows, lava flows, eruption clouds, acid rain, tephra, and lahars.

With the help of GEOLogic puzzles, students are asked to resolve how many days each of several volcanologists spent at a volcano and what day they started for the volcano.

This resource provides a description of igneous rock, its origin and the types of rock that are formed from a volcanic eruption.