Presented are 25 short articles which represent a variety of topics. Included are laboratory exercises, games, demonstrations, models, activities, teaching methods, notes regarding procedures and updates of scientific information. (CW)

Described is a spectrometer that can be used simultaneously by seven students to observe a single spectrum emitted by an element or compound in a single light tube against a calibrated screen. Included is a list of materials, directions for assembly, and procedures for use. (CW)

Presents a review of articles appealing to forensic practitioners. Topics include: drugs and poisons, forensic biochemistry, and trace evidence. Lists noteworthy books published on forensic science topics since 1986. (MVL)

Presents a review focusing on techniques and their application to the analysis of geological and inorganic materials that offer significant changes to research and routine work. Covers geostandards, spectroscopy, plasmas, microbeam techniques, synchrotron X-ray methods, nuclear activation methods, chromatography, and electroanalytical methods.…

Finds that a logical application of the simple rules of the molecular orbital bonding theory for diatomic molecules predicted the existence of three spin isomers of the oxygen molecule: one triplet form with two unpaired electrons and two singlet forms with all electrons paired. (MVL)

Describes two easily applied mathematical theorems, Budan's rule and Rolle's theorem, that in addition to Descartes's rule of signs and intermediate-value theorem, are useful in chemical equilibrium. Provides examples that illustrate the use of all four theorems. Discusses limitations of the polynomial equation representation of chemical…

Discusses problem-solving strategies and the successful strategy used to solve stoichiometric problems in general college chemistry courses. Reports that rereading problems, recalling a related concept, and reasoning deductively/inductively are the most heavily used strategies among 13 categories. (YP)

Describes a laboratory exercise testing the Vine-Matthews-Morley hypothesis of plate tectonics. Includes 14 questions with explanations using graphs and charts. Provides a historical account of the current plate tectonic and magnetic anomaly theory. (MVL)

Describes the monitoring of the redistribution of blood by using a technique which detects changes in the center of gravity of the body. Provides information about the principles and application, construction of apparatus, operating routines, and use of the computer as a recorder. Includes suggested investigations, demonstrations, and diagrams.…

Explains a summer research program which is a part of a required junior and senior independent study program. Provides information on selection of applicants, activities, outcomes, and a list of names and student projects. (RT)

Describes an experimental procedure to acquaint inorganic chemistry students with stereochemical concepts using tris-(2,3-butanediamine)cobalt(III). Notes two isomeric forms exist and both form metal chelates. Separation is accomplished by chromatography and analysis is by NMR and infrared spectroscopy. Provides spectra of isomers. (MVL)

Described are some computer software that can be used in chemistry classrooms: (1) "Polymer Tacticity in Simulated NMR Spectra"; (2) "Teaching Magnetic Resonance Imaging Using Computer Animation"; (3) "Emergency Response Database"; (4) "An X-ray Diffraction Pattern Simulator"; and (5) "Multiple-Choice…

Presented are four experiments for use in two wet analysis courses. These include comparisons and enzyme analysis. In each case, the theory behind each experiment is discussed. (CW)

The installation and uses of three water wells on the San Jose State University campus are discussed. Included in the discussion are funding, industry-university cooperation, and benefits to the instructional program. (CW)

A decision tree which can be used to help students determine the proper stereochemical relationship between two isomeric structures is presented. The proper use of this chart is discussed. (CW)