Ecosystems need decomposers to survive and thrive. This series explores six different decomposers, focusing on how they decompose matter and their necessary roles in ecosystems. This fascinating book explores the role worms play as decomposers. Readers dive in to what worms are, how they decompose, and how they fit into ecosystems. This book also includes a "That's Amazing!" special feature, several "Did You Know?" facts, a table of contents, quiz questions, a glossary, additional resources, and an index. AGES: 7 to 9 Hardcover Reinforced Library Binding