US Geological Survey
Usgs: The San Andreas Fault
A great overall site that tells us about the San Andreas fault, where it is and what kind of movements have occurred. It then goes on to talk about earthquakes in general and their occurrences along fault lines.
Science Struck
Science Struck: Underwater Volcano Facts
Provides information about underwater volcanoes.
Story Behind the Science
Story Behind the Science: Development of a Mechanism for Continental Drift [Pdf]
Article describing the history of scientific theories about continental drift, and the major researchers involved in this work.
Other
Geothermal Education Office
This resource for geothermal energy education features a slide show with instructive graphics.
PBS
Pbs Teachers: Seismometer
Build an instrument for measuring movement to learn about how scientists measure the Earth's movement with a seismometer.
Columbia University
Columbia University: Evidence for Internal Earth Structure and Composition
College-level research information describes how the movement of Earth's interior causes seismic wave activity.
PBS
Continents on the Move
Scientists believe that all the continents were once combined in one supercontinent. That means that the continents must be moving. Find out how scientists can measure the movement of whole continents!
Other
University of Chicago: Dinosaur Extinction
This theory from the University of Chicago of dinosaur extinction revolves around the concept of plate tectonics, the movement of the continents over a sort of liquid around the planet.
Science Struck
Science Struck: Examples of Destructive Forces of Nature
Discusses the destructive forces unleashed by volcanic eruptions, and the movement of water, wind, ice, and tectonic plates.
Science Struck
Science Struck: Examples of Constructive Forces of Nature
Discusses the constructive forces resulting from volcanic eruptions and the movement of water, wind, ice, and tectonic plates.
CK-12 Foundation
Ck 12: Earth Science: Long Term Climate Change
[Free Registration/Login may be required to access all resource tools.] Describes some factors that lead to long-term climate changes.