by Meg Marquardt (Author)

This title introduces readers to the wide variety of rocks on Earth. Alongside different categories of rocks and minerals, readers will learn about the rock cycle, how rocks form, and how different minerals are used. Features include a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Early Encyclopedias is an imprint of Abdo Reference, a division of ABDO.