Click on the shelves in this virtual exhibition to learn about the many rocks and minerals that we use in our everyday lives.

Gain an understanding of the cycles that form metamorphic, sedimentary, and igneous rocks.

Fourth graders identify rock types by observing key characteristics.

[Free Registration/Login Required] This PDF passage "If Rocks Could Talk!: Obsidian" from the American Museum of Natural History features an interview with an igneous rock named Obsidian. It is part of a paired text with "If Rocks Could...

Learn about the different types of igneous rocks and how they are classified.

[Free Registration/Login may be required to access all resource tools.] Describes the features of intrusive and extrusive igneous rocks that cool slowly and rapidly, respectively.

Review your understanding of the big ideas under the topic of igneous rocks.

Use crayons to model the rock cycle in this fun activity! You will make colorful sedimentary, metamorphic, and igneous "rocks" from crayon shavings.

In this lesson plan, students will be given a brief overview of the rock cycle. Students will then focus on igneous rocks and how they are formed. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS...

Rocks cover the earth's surface, including what is below or near human-made structures. With rocks everywhere, breaking rocks can be hazardous and potentially disastrous to people. Students are introduced to three types of material...

The purpose of this instructional activity is to introduce students to the basic elements of our Earth's crust: rocks, soils and minerals. They learn how we categorize rocks, soils and minerals and how they are literally the foundation...

Explains the difference between intrusive and extrusive igneous rocks and provides pictures and descriptions of common igneous rock types in each category.

Learn about the make-up and causes of igneous rock.

In-depth resource for identifying rocks. Includes an interactive rock identification key to help you figure out the name of your rock.

Did you know the rock cycle is a continuous cycle that takes hundreds of millions of years? This webpage explains how sedimentary, metamorphic, and igneous rocks are formed. It also gives examples of each type of rock. Also includes a...

Explains what granite it, and has an alphabetical listing of different types of granite, with pictures and details.

Welcome to Devil's Tower National Park in Wyoming! This highly interactive website reveals the geological processes behind the formation of this unique natural structure.