Describes seven computer simulations of laboratory experiments that allow students to direct experiments, make observations, and record data. (MLH)

Discusses and clarifies the confusion arising from the use of the terms "mass,""volume,""matter,""mole," and "Avogadro's number." Suggests three laboratory activities concerning mass, volume, and number of particles in a given volume. (CS)

Discusses changing high school chemistry curricula to emphasize relevant topics such as environmental pollution, energy, man-made materials, and food and drugs. (MLH)

Discusses characteristics of Nuffield physics curricula, such as the emphasis on understanding physical concepts and open-ended laboratory experiments. (MLH)

Described is an experiment that allows students to determine the distance to the moon by triangulation. Included is a description of parallax methods and photographic techniques. (CS)

Suggested are activities using a Polaroid camera to illustrate the capabilities of remote sensing. Reading materials from the National Aeronautics and Space Administration (NASA) are suggested. Methods for (1) finding a camera's focal length, (2) calculating ground dimension photograph simulation, and (3) limiting size using film resolution are…

Presents short articles on: recycling disposable plastics for laboratory use; an inexpensive source of atomic and molecular models; a simplified Boyle's Law demonstration; and a lab demonstrating energy transformation. (MLH)

Examined the use of "Writing Frames" to enhance ninth grade students' science investigations. Students were taught to use "Writing Frames" booklets and language cues booklets for "writing up" their science projects. Surveys of participants and nonparticipants indicated that participants had increased scores on various…

Examines problem complexity, inquiry method, learning style, and presentation method to quantify the magnitude of their effects on learning scientific inquiry in high school science curriculum. Recommends the use of collaborative learning tools to accommodate diverse learning styles in distance learning environments and proposes a paradigm for…

Examines four processes involving homogeneous catalysis which highlight the contrast between the simplicity of the overall reaction and the complexity of the catalytic cycle. Describes how catalysts provide circuitous routes in which all energy barriers are relatively low rather than lowering the activation energy for a single step reaction.…

Reviews two videotapes on motion: (1) "Demonstrations of Physics, Volume 1, Motion" and (2) "Center of Mass Motion." Describes the content, strengths, and weaknesses of each video. (YP)

Reported are the results of a survey of awareness, use, and attitude of Indiana secondary school agriculture and social science educators toward soil survey reports. An analysis by teaching discipline and geographic location is presented. (CW)

Describes the theory and procedures of four electrostatic experiments, including sources of charge, charged bodies, dipoles, and levitation. (YP)

Describes the nature of a saturation curve and discusses several examples including the number of American scientists, population, Dow industrial index, and the national debt. (YP)

Examines achievement in individually competitive and cooperatively reward-structured environments during a seven-week class period. Reports no differences between the two treatment groups at posttest. (Author/YP)