Discussed are methods for incorporating population/environment education into curricula. The problem-solving approach emphasizes demographic concepts and values. Suggestions are listed for activities, discussion topics, and audiovisual aids. Recommendations are given for student attitudinal pre/post test questions to assess behavioral objectives…

Photographs illustrate several principles of physics which can be observed in everyday situations. (CP)

Brief suggestions are given on the following topics of interest to chemistry teachers: rate of reaction anaologies, a buffer effect demonstration on the overhead projector, and a year-end activity in general chemistry based on the student's laboratory skills. (BB)

In response to an expressed need for inexpensive biological models for blind students, the American Printing House for the Blind has developed a set of 19 plastic models (schematics), which illustrate representative species of the major invertebrate phyla and component structures of flowering plants. (Author)

Discusses dichlorodiammineplatinum's ability to inhibit bacterial cell divisions and its use as an antitumor agent. (SL)

Considers the problem of the radiation emitted by a charged particle undergoing eternal hyperbolic motion. (Author/SL)

Offers instructions and geometrical data for constructing solids of the enantiomorphous symmetry classes 233 and 432. Provides background information for each class and highlights symmetrical relationships and construction patterns. (ML)

Describes the use of rubber hand-stamps to generate molecular pictures. These stamps (prepared with shapes of atoms and molecules at little cost by small, local print shops) can be used in creating pictures representing the microscopic state that can be linked to macroscopic descriptions for active conceptual exploration. (JN)

Reports on many news items of importance to the scientist and educator. These include a new Engineering degree, building a biological culture analyser, remote satellite sensing in geologic exploration, and others. (GS)

Outlines Public Health Service preliminary findings in a study designed to establish health and nutrition baseline data for future comparison and for government food policies. Data collected include caloric and nutrient intake from recollection, nutrient content of blood and urine, examination for incipient malnutrition, and bone and body…

Reviews the history of the stoichiometric term "equivalent" and examines its relevance over the last hundred years. (MLH)

Presents a semiclassical description of the interaction between a free atom and a weak optical field under conditions of either a stimulated emission or a stimulated absorption resonance. (MLH)

Discusses the application of the tunneling interpretation to the study of guided light waves. (MLH)

Traces the history of the so-called optical theorem in scattering theory from its beginning over 100 years ago to recent applications of its generalizations. (MLH)

Science education has become one of the priorities of education in the United States. Teachers in several schools have begun to use science kits as one tool to assist them in teaching science. Despite the wide use of science kits, little has been done to determine their effectiveness in promoting science learning. The purpose of this paper is to…