Explains a laboratory experiment dealing with the optical features of the human eye. Shows how to measure the magnification of the retina and the refractive anomaly of the eye could be used to measure the refractive power of the observer's eye. (GA)

Presents a quantitative laboratory experiment in geometrical optics. It involves the student in the measurement of the radius of curvature of the cornea and is based on an old method devised by Kohlrausch in 1839. (Author/GA)

Presents the results of two experiments concerning the phenomena of the interference of probabilities and of the so called Aharonov-Bohm effect. An electron biprism and a standard electron microscope have been used for the experiments. (Author/GA)

These two problem sets are useful in introducing this material to students with widely divergent backgrounds in biological and physical sciences. (BB)

Presented is an introduction to the life history and interesting qualities of the golden beetle. Suggestions for activities and questions leading from an examination of this insect are given. (MR)

Describes a procedure to demonstrate the effect of a magnetic force on a moving charge. The materials used are inexpensive and with the use of an overhead projector, easily visible to an entire class. (CP)

Describes a method of utilizing Silly Putty for making fossil impressions. (SL)

Describes a geology laboratory exercise involving weathering and topographic maps which allows students to put knowledge to practical application. (SL)

Describes a method illustrating continental drift by plotting paleomagnetic pole positions on plastic globes. (SL)

Describes a lecture demonstration method to illustrate some aspects of the nitration of alkyl benzenes. (SL)

Describes the Science Olympiad conducted yearly by St. Andrews Presbyterian College as a method of recruiting science oriented students. (SL)

Discusses activities with magnets and magnetism for elementary students. (SL)

Examination of the snowfall and total precipitation data for Rochester, New York, suggests a correlation with sunspot activity. Data from other locations tend to support the thesis, but the ability to predict yearly snowfall or total precipitation amounts from sunspot activity has yet to be developed. (Author/CP)

Describes a science activity which allows secondary level students to discover the law of refraction. (SL)

Reviews articles and papers published in 1975 relating to chemistry and presents a number of chemistry experiments, demonstrations,and activities. (SL)