You don't have to travel far to learn about rocks, just step outside, pick up a stone, and begin investigating. After taking a class walk around the school grounds collecting rocks, young scientists practice their skills of observation...

Science rocks! Explore three types of rocks and the rock cycle with an igneous rocks experiment. Pupils discuss textures, composition, and learn how melts are formed from the Earth's crust. They weigh materials using a scientific scale...

Take young geologists on an exploration of the collection of rocks and minerals that we call Earth with an upper-elementary science lesson. Through a series of class discussion and hands-on investigations, students learn about the...

Explains what Barrovian metamorphism is and the evolution of rocks as they are transformed by metamorphism. The process of burial, heat, and pressure that causes metamorphism is described. The concepts of metamorphic facies, grades,...

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

Learn the process by which metamorphic rocks are created, where they are located, and how they are identified by texture (foliated and non-foliated) and mineral composition.

Explains what protoliths, i.e., parent rocks, are and gives examples of protoliths and the metamorphic rocks they transform into. Each example is accompanied by photographs.

Presents facts about metamorphic rocks and describes the different types.

[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about how the three types of rocks form and convert from one to another. Includes a few questions to check for understanding.

An explanation of the differences between limestone and marble, including some excellent pictures.

Learn about various rock types and the rock cycle.

Covers the three main types of rocks, different weathering processes, erosion, and the rock cycle.

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

This one-page explanation of the rock cycle contains a very helpful diagram and useful explanatory notes. Site explains how rocks are made and broken down.

Describes the three different types of rocks and provides a diagram showing where they fit into the rock cycle.

What are rocks? Learn about the different types of rocks and how they are formed.