Subsequent sections introduce the concept of habitat, the study of algae, developing food chains, and observing decay. Students plan their experiments and record their observations in worksheets and tables contained in journals provided in the kit. The teacher's guide provides background information, directions for advance preparation, an index of materials included in the kit, suggested teaching procedures, informal assessments, extension activities, and cross curricular applications. Each section concludes with review activities that provide additional assessment opportunities. A glossary of terms is also provided.
Student journals are also available in Spanish.