Introduced is an inexpensive laboratory apparatus for first-year high school chemistry students. Presents information on materials, construction procedures, and activities for students. (YP)

Reports on a study that examined the performance and science attitudes of two groups of students in a college chemistry course. One group had enrolled in high school chemistry; the other group had not. There was no difference between groups as to attitude toward chemistry or academic performance. (RT)

Describes simple, efficient techniques for treating hazardous chemicals so that nontoxic and nonhazardous residues are formed. Discusses general rules for management of waste chemicals from school laboratories and general techniques for the disposal of waste or surplus chemicals. Lists specific disposal reactions. (CW)

Discusses the chemistry component of a five-week summer program for talented high school juniors and seniors at the Pennsylvania Governor's School for the Sciences. Describes the chemistry core, lab component, team projects, and program results. (CW)

Details three demonstrations for use in chemistry classrooms. Includes: "A Demonstration of Corrosion by Differential Aeration"; "A Simple Demonstration of the Activation Energy Concept"; and "A Boiling Demonstration at Room Temperature." Each description includes equipment, materials, and methods. (CW)

Describes an experiment to be performed in an undergraduate biochemistry laboratory that is based on a gradient centrifugation system employing a simple bench top centrifuge, a freezer, and frozen surcose gradient solution to separate macromolecules and subcellular components. (CW)

Describes a kinetic and mechanistic investigation of ascorbic acid by a substitution-inert complex in acidic medium suitable for the undergraduate level. Discusses obtaining the second order rate constant for the rate determining step at a given temperature and comparison with the value predicted on the basis of the Marcus cross-relation. (CW)

Presents a framework for model development that, when used, will help the student (or professor) avoid the major pitfalls associated with modeling. Includes not properly identifying the controlling factors, lack of model validation and developing a model that is incompatible with its end use. (CW)

Presents a philosophical commentary on the need and rationale for incorporating safety and health into the chemical engineering curriculum. Proposes safety and health assessments as useful teaching methods. Describes an approach to bringing safety and health into undergraduate engineering curricula. Gives examples of integration of these curricula…

Discusses combustion by suggesting several experiments and demonstrations using matches. Integrates quotes from famous scientists about the various phenomenon regarding combustion. (TW)

Proposes the use of a relative atomic mass (RAM) scale in which hydrogen is assigned a value from one as a teaching aid for better understanding the concept of RAM. Helps to clarify the ideas and concepts about this topic. (CW)

Using samples of college students of very high ability and strong academic background, sex differences in performance and perceptions of performance in introductory chemistry and mathematics courses were studied. Considerable differences favoring men were found, and these appeared to be due primarily to differences in mathematics background.…

Discusses a study that examined which reasoning patterns are necessary for success in high school chemistry. Based on student (N=170) scores from the "Classroom Test of Formal Reasoning," it was revealed that students who use formal reasoning patterns are capable of greater achievement in chemistry. (ML)

Provides descriptions and background information on: the use of workcards; Piaget and science curriculum analysis; a case for integrated science; the mechanism of aqueous bromination; integrating science/mathematics with language arts; and energy education. (ML)

Describes a laboratory experiment that is designed to aid in the understanding of the fundamental process involved in gas chromatographic separations. Introduces the Kovats retention index system for use by chemistry students to establish criteria for the optimal selection of gas chromatographic stationary phases. (TW)