Principles, experimental procedures, results, and discussion of this method are included here. The method was used in undergraduate laboratory courses in Toulouse, France. (BB)

Presents a simple, logical, and structured system for teaching and learning all the various structure variations and reactions of organic chemicals. (SL)

Describes a photosynthesis process which does not follow the traditional Calvin-Benson cycle. (SL)

Describes an experiment illustrating the absorption in the ultraviolet region to provide a simple spectrometric analytical method. (SL)

Presents current raw-score-percentile rank norms for the American Chemical Society (ACS) chemistry examinations. (SL)

Two instructional approaches and a control group were used in this study. Metric instruction in a college introductory physical science course was divided between: a) Approach A in which volume instruction followed that of length and area; b) Approach B in which volume was stressed but area was not introduced; and Approach C, the control (no…

Surveys of schools with approved programs in chemistry and chemical engineering revealed that the number of students receiving baccalaureate degrees rose only three percent; Masters degrees showed little change; and PhD degrees declined four percent. A listing of chemical and chemical engineering degrees awarded by surveyed schools is included.…

Contains recommendations for research priorities of the National Association for Research in Science Teaching (NARST) Study Committee. Promising areas in science education involving antecedent conditions; transactions, and outcomes are identified. Research styles and methodologies are also discussed. (CP)

Three variations of computer assisted instruction feedback were used with college astronomy students. On only one measure, a posttest, did subjects' achievement by treatments differ significantly. Significant differences in attitudes according to treatment group were not observed. (CP)

Describes a hand held calculator exercise for computing the Rydberg Constant accurately. (SL)

Describes a chemical laboratory safety course presented at Western Michigan University. (SL)

Provides a derivation of the Arrhenius activation energy using modern collision theory and state-to-state cross-sections. (SL)

Presents details of demonstrations illustrating cathodic protection using a photovoltaic source and optical rotation. (SL)

The exact dynamics is presented for a two-particle model. By expressing canonical ensemble averages in terms of time-energy averages, a deeper understanding of the dissociation property is achieved. (BB)

An explicit physical interpretation of the electromagnetic vector potential is indicated as field momentum available for exchange with kinetic momenta of charged matter. (BB)