Introduction to Rocks — Earth@Home

Introduction to the different types of rocks, their classification, and the rock cycle.

Introduction to Plate Tectonics — Earth@Home

Sedimentary Rocks - Geology (U.S. National Park Service)

The Rock Cycle - Diagram and Explanation

Sedimentary rock Definition, Formation, Examples

Introduction to Rocks — Earth@Home

Minerals - Geology (U.S. National Park Service)

Minerals — Earth@Home

How To Clean Your Landscaping Rocks To Keep Them Looking Their Best

Children's guide to rock collecting with a how to section and an introduction to geology.

Rock Collecting for Kids

Introduction to Rocks — Earth@Home

Sedimentary rock - Wikipedia