The cost of dealing with pollution and ensuring an acceptable environment must be regarded as part of the price to be paid for providing ourselves with the products of industrial activity. However, since environmental problems are relative rather than absolute, any judgment of risk needs to be balanced against the assessment of the benefit.…

Explains how to use sticky tape, a soda straw, and a little water to build a device which will demonstrate Charles' law as well as give the temperature. (GA)

The author has rewritten rules for CIPW norm calculation and has written FORTRAN IV programs to assist the student in this procedure. Includes a set of problems utilizing the CIPW norm to illustrate principles of chemical petrology. (MA)

This study utilized the instructional methods of discovery teaching and expository presentation to investigate the concept development of students in a remedial college chemistry class. Results indicate that the two sets of instructional materials did not lead to the same understanding of the concept. (BT)

Presents articles on: the measurement of flouride levels in natural waters; the effect of sunlight on the rate of chlorine decomposition in a swimming pool; and curriculum development in Australian agriculture science. (MLH)

Describes instruments for the quantitative measurement of radioactively tagged organic and biological molecules used as tracers. (MLH)

Discusses the legal implications of situations in which chemical educators may be liable for negligence. (MLH)

Describes the use of computer-assisted graphical displays in experiments to determine the order and activation energy for a chemical reaction. (MLH)

Discusses teaching science at the secondary and college levels and proposes a one-year unified science course organized around the human system. It would emphasize the basic principles of biology, chemistry, and physics. (SL)

Describes the construction and operation of a moveable videotape studio that is used in a chemistry laboratory to illustrate laboratory skills and experiments. (MLH)

Discusses a comparison of the relative effects on the stomach of a strong acid, hydrochloric acid, and a weak acid, aspirin. Also discusses molecular geometrics using the Valence Shell Electron Repulsion Theory. (MLH)

Describes an advanced inorganic chemistry experiment in which students prepare two coordination compounds and study their stereochemistry using infrared spectroscopy. (MLH)

Describes a kinetic simulation computer program that generates experimental data for use in an instructional program on the design of experiments and the analysis of results. (MLH)

Describes an experiment in which nitric acid is synthesized from ammonia on a small scale to illustrate a major industrial process. (MLH)

Reports recent statistics on professionals in chemistry, including the fact that a high percentage of new Ph.D. chemists take postdoctoral positions and that a declining percentage of new B.S. chemists are finding jobs in the chemical area. (MLH)