Geology
Geology means, literally, the study of the Earth. Explore this section to understand the structure of the Earth and its surface features, what causes earthquakes and tsunamis, and why volcanoes form and erupt. Learn about minerals, which form the building blocks of rocks, and how rocks are made and destroyed. Learn about Earth’s fascinating history, the variety of life forms which have roamed the surface over the millennia, and the dramatic changes that have happened over Earth’s long history.
You can get your own minerals and fossils, as well as the Fall 2010 issue of The Earth Scientist on Rocks and Minerals in our online store!
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Explore Geology
Earth's Interior and Surface
Earth, the largest and densest rocky planet, was formed about 4.5 billion years ago. The Earth's ...Read more
Minerals (and the Stuff They Are Made Of!)
Minerals are the building blocks of rocks. They are non-living, solid, and, like all matter, ...Read more
Rocks and the Rock Cycle
Rocks are always on the move through the rock cycle! Click on parts of this rock cycle diagram ...Read more
Earth's Layers and Moving Plates
The main force that shapes our planet’s surface over long amounts of time is the movement ...Read more
Earthquakes
The expression “on solid ground” is often used to describe something as stable. Usually the ...Read more
Volcanoes
There are several ways in which a volcano can form, just as there are several different kinds ...Read more
Fossils and Earth History
The Earth has been around for approximately four and a half billion years! The geologic time ...Read more
Scientists Who Study Rocks
Geology is the study of rocks and geologists are the people who study them! There are many ...Read more
Rocks, Minerals, Fossils in Online Store
Available Now! Beautiful specimens that inspire curiosity and demonstrate the inherent beauty of our planet. ...Read more
Earth Science Literacy Framework
This Earth system science literacy guide identifies the Big Ideas and fundamental concepts ...Read moreDid you know?
Did you know that mica minerals make some rocks sparkle? They also may have been the place where life first formed at the bottom of an ancient sea!Did you know that seismic waves can travel through the Earth and produce earthquakes?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?Aesthenosphere
xAesthenosphere : The asthenosphere is the ductile part of the earth just below the lithosphere, including the lower mantle.
Click on the word to find out!
Research Highlights
East Africa's Lake Tanganyika is Warming More Than Ever Before
Geologists think that the waters of Lake Tanganyika, a long lake located in East Africa, has experienced a huge amount of warming in the last 100 years. Currently, the surface water of this lake is the...Read more
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