Presents a new, recommended format for the periodic table which does not use the letters A and B to designate subgroups of elements. Also describes events leading to the adoption of this recommendation. (JM)

Discusses structure, phase transitions, and atomic volumes of the various period table families taking into account modern x-ray methods to the structure of the elements and to phase transformations as a function of temperature and pressure. Includes table and graph of atomic values at one atmosphere and room temperature. (JM)

Presents examples of chemical equations which, although they occur in different contexts, have the same mathematical formalism. Suggests pointing out similarities to assist students in relating physical situations to mathematical form. (JM)

Describes a technique for projecting reactions in test tubes by turning an overhead projector on its side. The technique can be used with any ordinary projector. (JM)

Discusses such international trends as: designing courses and curricula for general education; increasing interdisciplinary content; lowering costs of laboratory and field work; effectively utilizing microelectronics; developing more versatile examination and evaluation systems; improving teacher education/status; promoting research and advanced…

Describes an interdisciplinary approach designed to use the humanities as a source of material to exemplify chemical principles, stimulate critical thinking along scientific lines, and demonstrate to nonscience majors that chemistry is relevant to their academic experiences. A sample unit on environmental pollution, drugs, and poisons is also…

Discusses a cooperative education program developed for undergraduate students who attend the university for five years, completing the requirements of their university degree as well as 24 months of work experience. Student, faculty, and industry roles in the program and some effects/results of the program are considered. (JM)

Describes a science olympiad recommended as an alternative to the science fair, providing organizational details and funding notes. Discusses the competitive events which specifically include chemistry, events from other academic areas, and events designed just for fun which still provide a flavor of science. (JM)

Describes a cooperative venture in which a private corporation was formed to provide students with real-world experiences, assist in paying for their educational experiences, and provide answers to problems arising from the community in which an educational institution is located. Discusses formation and operation, as well as academic-corporate…

Presents list of companies serving as sources of polymers and technical information on these substances. Companies listed are usually willing to provide (gratis) small samples of their standard commercial products to universities for teaching or research purposes. Type of polymer, form available, and contact person for each company are included.…

Reviews a noncommercial educational game (Polymerlab) and changes made in GASLAWS (adaptation of mainframe program used in computer-assisted instruction). Describes programs on simulation of molecular speed distributions; interfacing microcomputers to make laboratory measurements; a course in microcomputer-instrument interfacing and measuring and…

Provides materials needed and procedures to illustrate the reversible color changes in certain organic acids on bases due to changes in pH. The technique employs three indicators which are colorless in acidic solution but form primary colors in basic solutions. Also discusses the free energy curve presented in many textbooks. (JM)

Presents background information on nitric acid including old names, history, occurrence, methods of preparation, uses, production, and price. Includes such chemical properties as decomposition; acidity, oxidation of metals and nonmetals; reactions with organic and inorganic compounds; gaseous fluorine; and nitrating properties. Also discusses bond…

Discusses use of a domestic microwave oven for drying analytical samples with time savings compared to conventional ovens, providing a solution to the problem of loss of load as samples dry. Presents a system for examining emitted gases from drying process and reports results of several test dryings. (JM)

Provides procedures for synthesizing and purifying a vitamin K metabolite (2,3-epoxide) to introduce many of the techniques used in lipid biochemistry. Includes typical results obtained as well as an optional experiment designed to test the purity of the epoxide obtained. (JM)