exhibit about the earth's movements. From the Franklin Institute Science
Earthquakes for Kids ...
and Grownups- Interesting and amazing facts, historic earthquake information,
science fair project ideas, frequently asked questions and a comprehensive
list of links for learning about earthquakes, faults and plate tectonics.
From the U.S. Geological Survey.
Exploring the Environment- More
than a dozen interactive studies related to the environment. For middle
and high school students. Includes teacher guides for classroom use.