Described are eight science activities that may take place on a school playground using a parachute, balls, swings, slides, and a balance beam. Procedures and questions for each activity are included. (CW)

Presented is a laboratory exercise designed to demonstrate the effects of moisture on hay preservation products in a manner that does not require large amounts of equipment or instructor time. Materials, procedures, and probable results are discussed. (CW)

Described is a course designed to better prepare students for employment in chemical industries. A course schedule for this interim course and a list of sources of speakers and speaker credentials is provided. (CW)

The Moire pattern is the shimmering pattern which looks like an odd interference pattern in window screens or folds of nylon shower curtain. Illustrates some of the ways the effect may be used, including demonstration of wave interference, detection of small displacement, persistence of vision, contour measurement, beats, and optical clearness.…

Presented is an activity that includes a poster of an African elephant and discussion questions, a class project, a model project, and a follow-up activity. (CW)

Presented is an activity that uses ground ivy to display different growth forms under different light intensities. Specimen preparation, materials, procedures, and probable results are discussed. Examples of graphs of the data are provided. (CW)

Provides directions for performing eight short activities which relate to various animals and help to teach affective objectives relating to interests, attitudes, and values. (RT)

Describes a demonstration that shows the absorption spectrum of chlorophyll. Uses an overhead projector, a solution of chlorophyll, and a diffraction grating. (RT)

Outlined is a procedure for the assessment of fungal growth under different cultural conditions, together with a demonstration of the toxic nature of exudates released from a fungal pathogen during growth in culture, using a simple bioassay. (Author/CW)

Described is a third-grade science unit using feathers. Children use the feathers to learn about measurement, observation, and inference. Procedures and results are discussed. (CW)

Several ideas are presented which can be used by teachers to arouse children's interest in birds and, at the same time, enhance skills in math, reading, writing, art, and creative thinking. A list of reading resources is included. (IAH)

Described is an experiment which uses an autotrophic bacterium to anaerobically oxidize hydrogen sulfide to sulfate in a batch-stirred tank reactor. Discusses background information, experimental procedure, and sample results of this activity. (CW)

Described is the manufacture of a superconductor from a commercially available kit using equipment usually available in schools or easily obtainable. The construction is described in detail including equipment, materials, safety procedures, tolerances, and manufacture. (Author/CW)

Describes this year's chemistry exhibition held in Japan and sponsored by the Chemical Society of Japan. Summarizes the purposes, preparation, and the activities of the exhibition. (YP)

Describes ways to use nomographs, including solving equations for equivalent resistance of a parallel circuit, focal length of a thin lens, parallel combinations of standard resistance, average speed, refraction problem, and height of a vertically projected object. (YP)