Did you know there are 20 volcanoes erupting at any given time? Pupils look at various igneous rocks, read local geologic maps, and determine if their area has a history of volcanic activity. A reading passage and analysis questions...

Young geologists piece together the puzzle of plate tectonics in an earth science lesson. Given a physical map of the world, they search for land formations that indicate the location of different types of plate boundaries.

Discusses volcanoes and what causes them to erupt, the types of volcanoes and eruptions, underwater eruptions, the structure of a volcano, and the impact of a volcanic eruption.

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.

Succinct descriptions of the different kinds of volcanoes, with additional links for each.

A site answering questions such as volcano type, how scientist predict eruptions, and how scientist know hot spots exist in Yellowstone National Park.

Great resource for learning all about tornadoes. Find out how they are formed, how they erupt, the different types, and notable volcanic eruptions. Also includes safety tips, animations, and activities.

Types of volcanic eruptions are named after actual volcanoes. View the eruptions of these volcanoes.

[Free Registration/Login may be required to access all resource tools.] Covers volcanoes, and the different types of eruptions that can occur from them.

A labeled diagram of three types of volcanoes: cinder cone, shield, and stratovolcano.

Explains different types of volcanoes and provides brief descriptions of active volcanoes around the world, including their histories of volcanic eruptions.

Use this site to discover some interesting facts about volcanoes and how they affect the earth. See some great animation and photos of volcanoes as well.

[Free Registration/Login may be required to access all resource tools.] This study guide summarizes key points about different types of volcanoes. Includes a few questions to check for understanding.

This resource provides information about composite volcanoes.

Illustrated resource explores how volcanoes are formed and the different types of volcanoes.

A concise explanation of the three types of volcanoes recognized by geologists.

A reference page describing the different types of volcanoes.

Learn about the type of volcanoes found in the National Parks in this reference article. Also, learn how those volcanoes formed.

Did you know the most productive volcanic systems on Earth are beneath the ocean? This reference page will explore the features and properties of these submarine volcanoes.

Study the different eruption styles with this reference page that discusses the characteristics of the eruption styles.

Educational site provides users with some understanding of how a volcano forms through the process of subduction.

How long does it take a volcano to grow? What are the different types of lava? What's a lava tube? All of these questions are addressed by this resource.

Explains what a natural disaster is and provides a list of every type along with a short description of each.

Hazards of different types affecting areas of varying size are assessed in California, Seattle, Hawaii and elsewhere.