Smaller amounts of materials are used in organic chemistry experiments as a means of improving air quality in the laboratory. Outlines benefits from this approach and describes two representative experiments in detail. These experiments are the Cannizzaro reaction and preparation of an aromatic nitrile. (JN)

Two demonstrations are described. The first (useful as an introduction to kinetics) shows how the rate of a reaction is fast at first and then gradually decreases to zero when one reactant has been used up. The second is a gas density demonstration using 1,1,2-trichloro-1,2,2-trifluoro ethane. (JN)

Shows how a standard slide projector can be adapted for use as an effective spectroscope. Also describes three experiments using the modified slide projector. (JN)

The moving pattern that appears on an oscilloscope screen is used to illustrate two kinds of wave motion and the relationship between them. Suggestions are presented for measuring wavelength, frequency, phase shift, and phase velocity in this college-level laboratory exercise. (DH)

Traces asteroid discoveries by amateurs from the 19th century to the present. The importance and necessity of amateur work are noted, especially with reference to observing and documenting occultations (one object passes directly in front of another which is farther away). Suggestions are made for viewing asteroids as a hobby. (DH)

A "colloqution module" (an instructional unit/strategy used in a conversation) consists of a reading assignment and a series of questions/activities. The strategy is suggested as an alternative to the lecture method. A sample module on insecticides (together with design information and advantages/disadvantages) is included. (DH)

Discusses the characteristics of developmental learners that cause an abnormal amount of difficulty understanding science concepts; research findings regarding learning and teaching science effectively; ways of promoting developmental students' success in regular science classes; and ways of individualizing science instruction. (DMM)

Explains the advantages of using molar quantities in chemical reactor design. Advocates the use of differential versions of reactor mass balances rather than the integrated forms. Provides specific examples and cases to illustrate the principles. (ML)

Describes the new class of oxide superconductors, the importance of these materials, and the concepts that led to its discovery. Summarizes the discovery itself and its early confirmation. Discusses the observation of a superconductive glass state in percolative samples. (TW)

Describes the comprehensive, college-wide approach to integrating computers in the curricula at Stevens Institute of Technology (New Jersey). Reviews how the personal computer ownership aspect of the program had an impact on the institution's organizational structure, faculty, and student body. (ML)

Reports findings on engineering faculty demographics derived from a survey conducted by the American Society for Engineering Education (ASEE). Presents data by geographical regions and discusses the reported variations. Notes perceived crises factors in engineering education. (ML)

Describes a lecture demonstration which illustrates changes in the visible spectra of oxygen transport proteins upon reversible oxygen binding. Provides a comparison of the physical characteristics of oxygen storage and transport proteins. Reviews essentials for preparation of the materials. (ML)

Examined relationship between career choice satisfaction and vocational decision making uncertainty and college freshmen's developmental level on Kohut's idealization construct for 476 entering students who had selected majors in engineering and technical sciences. Results support importance of idealization construct's relation to career choice…

Describes a summer research experience program for disabled undergraduates. Discussed are some results of the program. (YP)

Investigates the mechanisms of human visual perception by using computer generated displays. Introduces several experiments and demonstrations. (YP)