Investigates Israeli students' (grades four through nine) knowledge regarding the concept of a "gas" prior to and following instruction. Reports that students do not spontaneously develop a general idea of gas prior to instruction, and only after instruction do they first acquire this knowledge. Suggests three implications for…

Describes the Electronic Information Exchange System (EIES) and several of its uses in the schools. Uses acid rain as an example of one topic that has been investigated and conferenced on the EIES System by schools in geographically dispersed locations. (CW)

Described is the use of computer software to teach elementary scientific processes to sixth graders. Discussed are materials, manuals, procedures and evaluation. The results of a field trial are described. (CW)

Directions for the construction of a model bog habitat are provided including examples of plants and animals which may be suitable. Activities that use this model are suggested. Background information on the ecology and chemistry of the bog is included. (CW)

Discussed is the management of cooperative learning groups in an elementary school science classroom. Rules for classroom behavior and benefits that can be derived from using this method are suggested. (CW)

Presented are 14 student worksheets for use in teaching about environmental conservation. Topics of these games, puzzles include pollution, rainforests, endangered species, habitat destruction, and solid waste. An answer sheet for teachers is included. (CW)

Presented are lessons which bridge the gap between concrete and abstract ideas by introducing students to the valuable idea of scale as it relates to space science. Included are information and activities on relative size, position, and orbital patterns of planets using mathematics to construct models. (RT)

Discusses the diversity of rain forest life, the adaptations of rain forest plants and animals, and ways these organisms interact. Includes activities on canopy critters with a copyable sheet, rain forest revue, design a plant, and jungle sleuths. (RT)

Includes a glossary, bibliography, reference books, children's books, cassettes, films, filmstrips, records, slides, videos, booklets, periodicals, posters, other activity sources, information sources, index, and areas of tropical rain forests. (Author/RT)

Makes use of natural language of the beginning reader to teach a unit on dinosaurs. Outlines steps in the approach, strategies to heighten awareness and application, questions for encouraging further study, and a webbing technique. (RT)

Reviewed are two computer software programs for Apple II computers on weather for upper elementary and middle school grades. "Weather" introduces the major factors (temperature, humidity, wind, and air pressure) affecting weather. "How Weather Works" uses simulation and auto-tutorial formats on sun, wind, fronts, clouds, and…

Described are six activities for elementary and middle school students designed to encourage them to think about careers in engineering. Instructions and materials are discussed. (CW)

Israeli children's (kindergarten to grade nine) explanations about the water cycle are described. Reports the children's views about the source of clouds and the mechanism of rainfall. It was concluded that understanding evaporation is a necessary condition for explaining a mechanism of rain containing the ideas of condensation and heaviness. (YP)

Discusses the use of an overhead projector for the deflection of a vertical image to a screen. Describes three demonstrations: magnetizing of a steel ball bearing and paper clip; convection currents of a hot liquid within a cold liquid; and oscillation of concentrated salt solution into fresh water. (YP)

This study reports the preferences students expressed in regard to problem-solving modes for resolving environmental problems. There were many differences between students at different grades and between girls and boys. Implications for teaching are suggested. (YP)