Rocks are solid collections of minerals, or broken pieces of crystals or other rocks that have formed together. This title will introduce readers to the three main types of rocks (metamorphic, sedimentary, and igneous) and explain how they form and what they are used for. Complete with upclose images, glossary, and index. This title is written at a Level 3 and is specifically for transitional readers. Aligned to Common Core Standards and correlated to state standards. Dash! is an imprint of Abdo Zoom, a division of ABDO.