What goes on during an earthquake? Who came up with the theory of plate tectonics? What can the fossil record tell us about the evolution of life on Earth? These are all fine questions, and students and educators with a...

EarthComm (Earth System Science in the Community) is an Earth science curriculum designed for use by all students in U.S. high schools. This website contains resources for teachers, students, and parents, as well as...

This National Aeronautics and Space Administration site describes long-term changes in Earth's magnetic field, and how magnetic stripes in the Atlantic seafloor provide evidence for reversals of this field. The site...

Earthguide is an educational resource for students and teachers developed by the California Space Institute at Scripps Institution of Oceanography and the University of California San Diego. Features include in-depth...

The prediction of earthquakes may be inexact, but it is vital, especially when large cities such as San Francisco or Los Angeles are threatened. The San Andreas Fault and two other faults, the Heyward and Calaveras...