Discusses field collection, preservation and storage techniques, and identification of slime molds (with fruiting bodies). (DC)

Described are the advantages of using crayfish in an elementary or secondary biology class, crayfish activities, field collection, classroom care, and identification. (DC)

Presents content information and/or laboratory procedures and experiments on different biology topics including small-scale cultivation of watercress and its use in water-culture experiments, microbiology of the phylloplane, use of mouthbrooders in science class, and the gene. (DC)

Provides science activities and teaching hints appropriate for the middle school sciences including making a domino "gunpowder fuse" that detonates a mousetrap "bomb," using fishing rods and bicycles as teaching aids, constructing lead holders, and teaching chromatography. (DC)

Outlines procedures for developing an outdoor program for teaching science including appointing a steering committee and establishing objectives. Suggests a variety of teaching activities. (DC)

Suggests the use of simple testable problems to motivate middle school students to plan and carry out their own experiments, thus reinforcing integrated process skills. Lists several sample problems. (DS)

Provides instructions for constructing a model of a working thermostat and suggests several student activities using the model. (DS)

Briefly reviews different methods to evaluate student laboratory work and describes the procedures followed in using laboratory performance tests at Mercer University. Cites five sample performance-test tasks and materials needed. (SK)

Outlined is background information and procedures for conducting an archaeological dig including vocabulary, tools, site selection, and pre- and post-dig activities. (DC)

The problems of individualizing instruction in elementary school science are discussed. A system for teachers to use to monitor their individualization efforts is also presented. (SA)

Announced is the availability of a set of lessons for middle school and secondary school teachers who want to teach about energy. Concrete experiences are emphasized in this instructional program. (SA)

Described is a case study used in an introductory college biology course that provides a basis for generating debate on an issue concerning the regulation of controversial food additives and prescription drugs. The case study contained within this article deals with drug screening, specifically with information related to thalidomide. (CS)

Describes two games which may be used with pairs or teams of students in earth/space science courses to reinforce and enrich content and to review subject matter. A microcomputer program in BASIC II is provided. (CS)

Discusses the nature of light-producing reactions and provides a procedure for demonstrating chemical luminescence using siloxene indicator. Indicates source of this chemical and safety precautions. (SK)

Provides instructions and rules for a game to teach covalent bonding in which a set of plastic atoms are combined to produce stable covalent bonds. (DS)