Analyzes the role of experiments in science teaching, and applies this analysis to the teaching of Millikan's experiment in physics. Critically examines an article written by T. J. Harvey entitled Millikan made easy'' which was previously published in The School Science Review. (JR)

Describes a laboratory practical on animal behavior suitable for senior secondary school or university biology classes. Several separate exercises relating to the house building behavior of caddis fly larvae are detailed, together with the time required for preparation. (JR)

Discusses the conduct of a new course, The Control of Chemical Hazards, at the Bedford College with emphasis upon pollution measurement and control. (CC)

Analyzes statistical results obtained from a survey of employment of chemists from 1968 to 1972. Indicates that a combined or interdisciplinary scientific program is preferred to a single subject course to provide graduates with opportunities to turn to miscellaneous appointments. (CC)

Presents experiences of participating in the Conference on the Teaching of University Chemistry attended by representatives of 14 countries south of the Sahara. Indicates that the universities and schools still adhere closely to the English system of education. (CC)

Describes a one-semester course which consists of undergraduate-oriented talks by faculty members and industrial scientists, reading assignments concerning human elements, and an introduction to chemical literature. Indicates that the course has the flexibility to change as other areas of need are identified. (CC)

Usually the textbook descriptions of analytical methods fall short of making comparisons among several methods employed for analysis. Emphasis should be placed on making decisions about using a particular method on the basis of its merits. Listed are experiments that could be used for instruction. (PS)

Describes a model that illustrates the operation of principles of adaptive radiation. The model used is constructed of materials that can be easily obtained. Suggestions for use are provided. (PS)

Describes an indirect laboratory method of calculating pi by using circular aluminum foil pieces as reactants with sodium hydorxide solution in a eudiometer, and indicates the presence of errors ranging from +0.05 percent of 3.1416 to +0.5 percent of 3.142. (CC)