Do your students have a hard time understanding what decomposers are? This resource helps students gain a better understanding of this concept. There is a non-fiction text that tells students about different types of decomposers and their role in the environment. There are follow-up questions for the passage to check student understanding or to guide group discussions. There are also two mini posters; one of the decomposers and one of matter that is being decomposed. Several simple decomposition activities are also listed.