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)

Describes how many of the geometrical and physical properties of the binary elastic collision of two particles can be represented by an isoceles trapezoid in the velocity space. (BB)

The basic physical principles of dye lasers are discussed and used to analyze the design and operation of tunable dye lasers pumped by pulsed nitrogen lasers. Details of the design and construction of these dye lasers are presented. Some simple demonstration experiments are described. (BB)

Reports some reactions and opinions of the students to a course in nuclear and radiation chemistry using programmed instructional aids. Concludes that the findings were very favorable to the course. (GA)

Reports that five hours per week remedial work with freshmen failing the introductory chemistry course led to higher final marks than for a group not receiving remedial help. (CP)

Indicates some of the information that may be obtained from a binary solid-liquid phase equilibria experiment and a method to write a computer program that will plot an ideal phase diagram to which the experimental results may be compared. (Author/CP)