Describes a special camera that can be directly linked to a computer that has been adapted for studying movement. Discusses capture, processing, and analysis of two-dimensional data with either IBM PC or Apple II computers. Gives examples of a variety of mechanical tests including pendulum motion, air track, and air table. (CW)

Describes a common misconception in the study of mechanics. Cites textbooks as being in error for equating velocity components along the string because the string does not remain taut. Discusses the typical textbook approach to a problem of this nature and the misconception that pervades textbooks in the British Isles. (CW)

Uses a demonstration done by John Tyndall in 1856 to show that geological processes can produce striking changes, such as slate formation, by slow and incremental means. Explains how Tyndall's demonstration can be replicated in the classroom using paraffin or beeswax to produce the layering change similar to slate. (CW)

Describes the flour beetle, "Tribolium confusum," and its life cycle, habitat, culturing requirements, and some possible uses of this beetle as a classroom animal. Discusses what children could learn from flour beetles. Explains how to get rid of beetles found in foods at home. (CW)

Discusses the causes, sources, and problems associated with acid deposition in the Pacific Northwest. Includes a learning activity about acid rain, "Deadly Skies," which was adapted from the Project WILD Aquatic Supplement. (TW)

Discusses the establishment of a high school chemistry instrumentation center designed to retrain teachers, improve precollege preparation of high school chemistry students, and to make simple chemical instruments at a minimal cost. (TW)

Identifies proportionality as a powerful problem solving tool that students can apply in familiar situations but cannot apply in unfamiliar contexts. Gives an operational definition of proportionality from examples in introductory chemistry. Provides examples of direct proportions and how to evaluate variables to teach proportional reasoning. (CW)

Provides reviews of four computer software packages designed for use in science education. Describes courseware dealing with a variety of tips for teaching physics concepts, chemical reactions in an aqueous solution, mitosis and meiosis, and photosynthesis. (TW)

The Japanese high school entrance examinations were examined in detail for social studies, mathematics, and science test items. Most items measured knowledge and comprehension rather than synthesis, analysis, or scientific thinking. Implications for middle school instruction were discussed. (GDC)

Presents a response to recent calls for reform in science education. Argues for increased "hands-on" experience, both in the laboratory and in the environment. Suggests the need for producing more "enthusiastic" science teachers. (TW)

Gives an example of a class project dealing with pollution developed by one school involved in the School Curriculum Industry Project. Discusses investigations covering a three-week period in which chemistry students were involved in audiovisual productions, field trips to pollution treatment centers, and small group presentations. (TW)

Describes a study in which middle school/junior high school students were exposed to women science career role models as a part of their science instruction. Results indicated that the student's attitudes toward scientists and women in science were positively affected. (TW)

Describes students' perceptions of their studies in the Preacademic School at the Hebrew University and discusses their attitudes, expectations, and opinions with regard to a desirable preacademic preparatory program. Students expressed concern about deficiencies in learning skills. (ML)

Describes the absorption and containment (AC) approach to laboratory chemical-spill cleanup. Discusses currently recommended chemical-spill cleanup procedures and evaluates commercially available cleanup materials. Promotes the use of the AC method in terms of its relative safety, availability of materials, and ease of instruction. (TW)

Describes two demonstrations designed to help chemistry students visualize certain chemical properties. One experiment uses balloons to illustrate the behavior of gases under varying temperatures and pressures. The other uses a makeshift pea shooter and a commercial model to demonstrate atomic structure and the behavior of high-speed particles.…