In this book, readers will learn about one of Earth's most important building blocks - rocks! Engaging, easy-to-read text describes how rocks form from minerals and change over time. Igneous, sedimentary, and metamorphic rocks are explained in detail, and a comprehensive diagram illustrates how these three types move through the rock cycle. Rock identification is introduced, as well as how rocks are used in everyday life. Mining and land reclamation are also covered. Facts, a glossary with phonetic spellings, and an index are included as well. Big Buddy Books is an imprint of ABDO Publishing Company.