Laboratory procedures are explained for taking benzoic acid and using it or one of its derivatives throughout an introductory lab course. Synthesis, purification, weight determination, identification of an acid, equilibrium constant, salt preparation, salt analysis, and salt solubility measurements are involved in the semester's experience. (DS)

Provides a rigorous but straightforward thermodynamic treatment of the temperature dependence of the solubility of solids in liquids that is suitable for presentation to undergraduates, suggesting how to approach the qualitative aspects of the subject for freshmen. Considers unsolvated/solvated solutes and Le Chatelier's principle. (JN)

Patterns of bureaucratization and democratization in voluntary organizations may be explained by four principles of embryology: (1) the irreversibility of embryological development, (2) the canalization or branching of developmental pathways, (3) the induction of developmental change by the interaction of internal stimuli, and (4) the…

Reviews information on solar radiation as an energy source. Discusses these topics: the key photovoltaic material; the bank theory of solids; conductors, semiconductors, and insulators; impurity semiconductors; solid-state photovoltaic cell operation; limitations on solar cell efficiency; silicon solar cells; cadmium sulfide/copper (I) sulfide…

This is a discussion of the conservation of angular momentum of the human body engaged in somersaults and twists. The principle is also applied to a cat turning over in midair. The events occur in the absence of torques. Application of the maneuvers are suggested for astronauts. (SA)

The lack of a documented science of technology of education is discussed and new research approaches gaining credibility and pointing to a more positive direction for scientific inquiry are outlined. (JMF)

Centrifugal Force is described and defined in terms of the underlying theory and terminology with the aid of rigorous analysis of this phenomenon. (DS)

Describes the NSF's "Science and Engineering Education for the 1980s and Beyond" report which concludes that the USA is lacking in scientific and technical knowledge and understanding. Also includes the report's suggestions for providing better support for teachers, integrated science and engineering educational systems, and organized…

The cause and effect model of research and application was first discredited in physics by the uncertainty principle. The same dramatic shift in outlook that the uncertainty principle necessitated among physical scientists is long overdue among those committed to the enhancement of the unique world of the person. (Author)

This inaugural address given at the first national convention of the Association of Teachers of English to Speakers of Italian (ATESI) discusses the scientific status of language teaching methodology. (CFM)