This guide provides a resource for teachers interested in developing unified science instructional units, and is a guide to potential modules that can be assembled into instructional units with a minimum of materials, equipment, and time. All modules included were selected from documents abstracted in "Resources in Education (RIE)" and available through the Education Resources Information Center (ERIC) system. Module ideas are indexed via ERIC document number (ED number) under themes including: general concepts, process, phenomenon, problem, cause-effect, density, energy, evolution, force, perception, population, system, and others. An abstract of each module idea is then listed in order by ED number. Each abstract includes components, status, materials, mode, context, target, themes, and a brief description. (SL)