Explains: (1) the "standard" atmospheric pressure demonstration using an empty duplicating fluid can and heated water; and (2) a variation of this demonstration using an aluminum soft drink can. (DH)

This introduction to photoelectrochemical (PEC) cells reviews topics pertaining to solar energy conversion and demonstrates the ease with which a working PEC cell can be prepared with n-type silicon as the photoanode and a platinum counter electrode (both immersed in ethanolic ferrocene/ferricenium solutions). Experiments using the cell are…

Describes an experiment for plotting equipotential curves in which the normally used electrometer is replaced by a null-deflecting potentiometer, and in which the uniform resistance wire is substituted by carbon-impregnated conductive paper. Procedures and sample plot/results (including graphic analysis) are provided. (JM)

The framework of the course "Problems in Pharmaceutical Chemistry" was used to give second- and third-year pharmacy students at the University of Florida an opportunity to obtain an insight into the workings of laboratories dealing with drug-related problems. Goals, outline, and an illustrative project for the course are described. (LBH)

To accomodate the increased need for pathology in pharmaceutical education, the University of Wyoming School of Pharmacy has modified its instructional program, presented according to Keller's PSI method. Students take a course that integrates basic anatomic pathology with the fundamental concepts of clinical laboratory technique. (LBH)

Four measurement activities concerned with mass and one activity dealing with the relation between mass and weight are presented in worksheet form for students. A self-check module is included. (DT)

Describes the laboratory procedures for the measurement of thermal expansion and viscosity of liquids. These experiments require inexpensive equipment and are suitable for secondary school physical science classes. (JR)

Discusses the design of two experiments on the reactions of 1-Chloro-1, 2-diphenylethane and of C-5 halides with nucleophiles in an inservice teacher course. Indicates that the material can be applied in teaching chemistry at both secondary and college levels. (CC)

Describes precautions that should be taken and procedures that should be followed to minimize the risk of accidents in the school science laboratory. (JR)

Describes an experiment which yields low-volatility phenylacetylene, and suggests the use of the liquid product to examine alkyne chemical reactivity in organic chemistry courses. (CC)

Suggestions for organizing and implementing a math-lab approach are given. Devices useful with the topic of place value and manipulations with the geoboard are discussed extensively. Many other materials are listed and referenced. (LS)

Suggests uses for and possible adaptations of a set of semiflexible molecular models. Includes price and supplier information. Also suggests rubbing oil from human face/hands along the pouring lip of a beaker, allowing one to pour uniformly from the beaker spout and making the process as dripless as possible. (Author/JN)

A nontraditional laboratory course for first-year medical students is described, consisting of two laboratory exercises adapted to the guided design strategy and a short research project. Student learning and attitudes were shown to improve, but curriculum preparation time was a major disadvantage. (MSE)

Outlines procedures demonstrating that the aperture of a microscope objective limits resolving power and then, by using ancillary measurements made with a calibrated graticule in the microscope eyepiece, that the experimentally determined value for the maximum resolving power of a given objective is close to the value predicted by theory. (JN)