This source book consists of four parts. Part One, an introduction and overview, deals with the need for establishing new science programs and shows the relationship of the source book to the K-12 science program of the Science Manpower Project. Part Two consists of three chapters written for use in grades K-3: "Simple Machines,""Heart and Temperature," and "Energy and Energy Sources." Part Three consists of the following chapters designed for use in grades 4-6: "Water and Water Supply,""Simple Electronics," and "Flight in Air and in Space." Part Four, a bibliography for both children and teachers, lists recommended books and audiovisual materials. (BC)