Rocks hold the history of the earth and the materials that will be used to build its future. This website holds a treasure of information regarding igneous, metamorphic and sedimentary rocks.

This 23-page slideshow explains what intrusive and extrusive igneous rocks are and the characteristics of their structures. Each type of structure is accompanied by one or more images. (Website for Mining Engineering students at Mehran...

In this interactive tutorial you'll learn about rocks and the rock cycle. You'll be introduced to the three different rock types and what makes them what they are. You'll also learn about how the matter that makes up these rocks is...

Eight hands-on lessons module where students learn about rocks and landforms. These inquiry-based investigations explore the different types of rocks, how they are formed, the different types of landforms, and the effects of glaciers on...

Dig into the layers of activities exploring and investigating minerals and how they are related to both rocks and soil.

This resource provides a description of igneous rock, its origin and the types of rock that are formed from a volcanic eruption.

A slideshow, a karaoke song to sing along to, and a short multiple-choice quiz on the topic of igneous rocks, how they are formed, and some different types.

What are rocks made of? Where do rocks come from? What is an igneous rock? These are just some of the questions answered by the scientists of the U.S. Geologic Survey.

Test your knowledge of different types of rocks by taking a quiz. Determine if each picture shows an igneous, metamorphic, or sedimentary rock.

A well-designed lesson on rocks where students first learn about how the three categories of rocks form (sedimentary, igneous, and metamorphic), then must examine the features of different rock samples, and determine which category each...

Did you know that there are some rocks that actually float? Follow this interactive investigation to find out which ones and why.

This tutorial explains the rock cycle--from beginning to end! It is full of activities, assessments, games, slideshows and all kinds of interactive material. Learn what rocks are made of and how they change from one form to another....

Essential guide to geology of the National Parks focuses on minerals and the different types of rocks. Includes a visual glossary.

Learn about the differences and similarities between the three different types of rocks on this page.

Students reinforce their understanding of rocks, the rock cycle, and geotechnical engineering by playing a trivia game. They work in groups to prepare Jeopardy-type trivia questions (answers) and compete against each other to demonstrate...

Students learn the components of the rock cycle and how rocks can change over time under the influence of weathering, erosion, pressure and heat. They learn about geotechnical engineering and the role these engineers play in the...

[Free Registration/Login may be required to access all resource tools.] How to classify igneous rocks.

An interactive animation showing the rock cycle. By clicking on the different parts of the cycle, students can view definition of rock types and animations of the processes that happen within the cycle.

What is igneous rock? How is it formed? What makes igneous rock different from sedimentary rock or metamorphic rock? This interactive OLogy card answers these and similar questions.

Overview of rocks including igneous rocks, sedimentary rocks, metamorphic rocks, and the rock cycle.

[Free Registration/Login Required] An informational text about sedimentary, igneous, and metamorphic rock. A question sheet is available to help students build skills in reading comprehension.

Learn about metamorphic, igneous, and sedimentary rocks and see many examples of each type.

[Free Registration/Login Required] Students read about three different types of rocks: sedimentary, igneous, and metamorphic. A question sheet is available to help students build skills in classifying and categorizing.

[Free Registration/Login may be required to access all resource tools.] Presents the three major rock types and the rock cycle.