GENERAL EARTH SCIENCE

Planet Earth

From Discover.Com

EarthForce

Volcanoes, Earthquakes

Middle School Earth Science Explorer

Earth Science Online Resources

From Franklin Institute

EARTHQUAKES

Plate Tectonics. Volcanoes: Earthquakes for K-12

Introduction to Plate Tectonics

Understanding Earthquakes: Earthquake Globe Animation

Earthquake Information - Worldwide 

About Earthquakes

Understanding Earthquakes

Earthquake Research Index Page

The World Wide Earthquake Locator

Earthquake Information - United States

Earthquakes

Includes S.F. Quake

Earthquake Glossary

San Francisco Earthquake 1906

San Francisco Earthquake & Fire

Museum of San Francisco

Eyewitness: San Francisco Earthquake & Fire

Tech Museum - Earthquakes

Our Savage Earth

Land & People

VOLCANOES

Volcano World The Premier Source of Volcano Info on the Web

Cascades Volcano Observatory Home Page

Volcanoes  

U.S. Geological Survey

Volcanoes: Can We Predict Volcanic Eruptions?

Global Volcanism Program Smithsonian Institution's Museum of Natural History

Volcano Watch  

Hawaiian Volcano Observatory's weekly newsletter

Volcano Information Center

University of California at Santa Barbara

Can We Predict Volcanoes?

How Volcanoes Work

GEOLOGY

Geological Time Scale

A Geological Time Scale With Links to Eras

The Geological Time Scale  Ages of Gaia Project

The Geologic Time Scale Provides links to the hierarchical set of divisions for describing geologic time

UC Museum of Paleontology, Geology Entrance: Geology and Geologic Time

The Age of Mammals: Life in the Cenozoic Era

U.S. Geological Survey Home Page

Mesozoic Era

Igneous, Metamorphic and Sedimentary Rock Info  University of British Columbia

Introduction to the Mesozoic Era

USGS Learning Web

Plants, Animals, Geology