Describes how to modify an electroscope so the charge can not leak out. (LS)

Describes five ways for harnessing solar energy and lists references containing suggestions for classroom experimentation. (LS)

Experiments using soap films illustrate some of the most basic theorems concerning networks in a geometric framework. (SD)

Describes an undergraduate analytical chemistry course that utilizes instrument modules, which show how the key parts of an instrument fit together and contribute to the overall operation of the instrument. (MLH)

Describes thin-layer chromatography experiments in which the students separate natural products, such as paprika, chile powder, and peppers. (MLH)

Describes an undergraduate chemistry experiment in which an atomic absorption spectrophotometer is used for recording flame emission spectra of the diatomic carbon molecule. (MLH)

A game, similar to bingo is described, in which students match names, symbols, and figures. (SD)

Describes the apparatus and applications of a solar energy study kit suitable for school and college use. (LS)

In the activity described here students build mazes, then time fellow students as they "run" the mazes. They then graph the results to determine a learning curve. (SD)

Describes applications of mechanical principles based on the theory of flight. Includes a discussion of aerofoils and lift, aircraft structures, aircraft performance, and laboratory experiments. (GS)

Describes a general chemistry level kinetics experiment requiring three 3-hour laboratory periods. Data analyses can be accomplished with graphical techniques or a non-linear least squares computer program. (MLH)

Describes an experiment in which general and physical chemistry students can determine the heat of vaporization of a volatile substance from experimental laboratory data using timesharing techniques. (MLH)