According to theory of plate tectonics, Earth is an active planet -- its surface is composed of many individual plates that move and interact, constantly changing and reshaping Earth's outer layer. Volcanoes and...

This guide provides instructions for educators on the classroom use of seismic data from the Broadband Seismic Data Collection Center (BSDCC). BSDCC collects and distributes seismic data from several regional networks...

This set of interactive online simulations shows the forces that may be at work on geologic structures or on man-made structures during an earthquake. Users can see examples of compression, tension, bending, and torsion....

This unit introduces students to the development of the theory of continental drift. They will examine the early work of Alfred Wegener and Alexander DuToit, investigate lines of evidence that resulted in the development...

Conveying the dynamism of various geologic processes can be hard in the classroom or on the web, but this interactive feature from the Annenberg Media's Learner.org site does quite a fine job of introducing students to...