Describes a simple method for measuring the heat of vaporization of water, which gives results within five percent of the accepted value. (GA)

Describes a laboratory game called SUPERCHARGE, used as an aid to help students understand the concept of equipotential surfaces generated by distributions of charges. (GA)

Describes an experiment for measuring the lifetime of the 60-keV state in 237-Np which is populated in the alpha decay of 241-Am. The technique used is the delayed coincidence method using a time-to-pulse-height converter. (Author/GA)

Describes an experiment in nuclear physics to study radioisotopes. In this experiment the build-up of the activity of the source, 28-A1, is done first by irradiating it. (GA)

Discusses two different uses of information theory in chemistry to present entropy and chemical structure analysis. (GA)

Experiments and demonstrations are presented which have been used in a high school course on animal behavior. Animals used include spiders, fish, birds, and mammals. (BB)

An experimental system, suitable for secondary schools, uses Chlorella vulgaris to demonstrate the effects of mercury and cadmium. Very low concentrations of mercury or cadmium decrease growth, whereas lead or arsenic have little effect. Further experiments show additive interactions between mercury and cadmium and antagonistic interactions…

Explains a way to determine the age of a turtle, how to care for them and what to feed them while in temporary captivity. (GA)

Urges the use of the immediate environment of the school to serve as a focus and a medium to help plan activities and experiments in the different subject areas of science, and in the area of environment. (GA)

Describes several activities that can be done with laboratory mice to study the physiological role of oxytocin. Diagrams included. (MA)

Explains some of the ways in which dried yeast has been used in sixth-form work to illustrate some points and principles relevant to a high school biology course. (Author/GA)

Provides a reading list of articles and journals for high school biology on a wide range of topics. A few short articles and experiments on biology related topics are also given. (GA)

Describes the use of atomic spectra that are excited in inductively coupled plasmas for the simultaneous or sequential determination of the elements at all concentration levels. (HM)

This study was undertaken to develop an affective, small-group experience for helping children cope with death and to investigate the effectiveness of the experience in reducing children's anxieties about death. The generally positive results suggest that affective death education experiences such as this one should be made available to children.…

Three experiments assessed the effect of visual familiarity of words on "same-different" reaction times (RTs) in a simultaneous-matching task. All three studies showed visual familiarity to be responsible for differences in slope over sequence length between words and nonwords. (Editor/RK)