Describes an experiment in which students become familiar with the organic chemistry extraction process, perform analyses by thin layer and column chromatography, and use the absorption spectrum (obtained from a spectrophotometer) for identification. List of materials needed and procedures used are provided. (JN)

Discusses use of a hornet or wasp nest as an inexpensive science investigation on thermoregulation. The investigation can be done during the winter months and adapted to various levels. Sample results and background material are included. (JM)

Describes a computer program which calculates a best estimate of refractive index and dispersion from a large number of observations using the double variation method of measuring refractive index along with Sellmeier constants of the immersion oils. Program listing with examples will be provided on written request to the author. (Author/JM)

Discusses techniques involved in producing recombinant DNA. Also discusses implications of the new genetic technologies and prospects for the future. (JN)

Background information, procedures, and typical results are provided for an experiment illustrating the potential of hydrated salts for solar energy storage. The experiment involves a demonstration often used to illustrate the ease with which some transition metal ions can change their coordination numbers. (JN)

Discusses how the concept of crystallography, especially the relationship between spherical and stereographic projections of crystals, is more easily understood by undergraduate students if they make spherical projections of crystals. Recommends using transparent balloons and a felt-tipped marker to denote the locations of crystal axes, face…

This literature review on chemometrics (covering December 1981 to December 1983) is organized under these headings: personal supermicrocomputers; education and books; statistics; modeling and parameter estimation; resolution; calibration; signal processing; image analysis; factor analysis; pattern recognition; optimization; artificial…

Briefly describes some of the more recent developments in the use of human hairs for such instructional purposes as observing barr bodies and chromosomes, and for culturing to produce cells of both epithelial and fibroblastic morphology. Three main hair categories are also described. (JN)

Described is an inexpensive wave tank used to study the amplitude of tsunamis travelling down a channel of decreasing depth. A detailed discussion to theory and computations is included. (SL)

A method is explained for using right triangles on a geoboard for determining the greatest common factor and least common multiple of two numbers. (DT)

Presented is an outline for students for writing science laboratories reports. A list of 15 common errors is included. (SL)

A Mira is described, then several uses of the Mira are suggested. (DT)

This resource book contains 40 chemistry labs and provides a single solution to the problems of purchase, storage, use, and disposal of chemicals. The text is designed to be used alone or integrated with current textbooks. A mixture of microchemistry and macrochemistry is used to provide variety and reflects trends in research and industry. Most…

Discusses the use of a simple computer exercise to derive a general law for simple pendulum phenomena with square-law damping. Indicates that less mathematical skills are requires in the computer treatment than in the analytical treatment.

Discusses a lab experiment where rubber bands are used to determine a spring constant and to predict the range when the band is stretched and fired. Included are the formulas involved. (CC)