Presents a model for silicon oxidation in the manufacture of silicon devices and integrated circuits. Provides homework problems and their solutions. (YP)

The nature of cluster analysis and dendograms, subjects, tasks, and results of this study are described. Categories for problems were based on assumptions about the methods used by novice and expert problem solvers in a physics context. (CW)

A demonstration that can be used to illustrate diffusion and osmosis is presented. Discussed are materials, procedures, and an explanation for the effect. (CW)

Discussed is the evolution of aerobic organisms from anaerobic organisms and the accompanying biochemistry that developed to motivate and enable this evolution. Uses of oxygen by aerobic organisms are described. (CW)

Described is a project in which students find a living population in their community and either study it in the field or bring it into the laboratory for study. Seven example projects are suggested. (CW)

Discussed are recognizing learning disabilities, the classification of learning disabilities, and testing instructional strategies in a geological sciences context. Suggestions for coping with the challenge of teaching these students are provided. Sources of assistance are listed. (CW)

Presented is an activity in which students construct a model of plate divergence with two sheets of paper to show the separation of two continental plates in a system of spreading ridges and faults. Diagrams and procedures are described. (CW)

Discussed are some of the strategies required to try to detect and explain DNA markers that account for small amounts of behavioral variation. Situations in both animal and human behavior are described. The link between molecular biology and behavior is highlighted. (CW)

Described are the experiences of one teacher with the teaching of writing in college level microbiology, virology, and immunology courses. Assignments, methods, evaluation, and student responses are discussed. (CW)

Presented is an activity designed to help students understand and appreciate the scale and order of the geologic timetable and begin to infer a relationship between biologic, chemical, and geological events. Procedures, background information, student worksheets with answers, and a list of materials are included. (CW)

Reviews three videotapes for physics teachers: (1) "Determination of the Newtonian Constant of Gravitation" showing the Cavendish experiment; (2) "Preview Film for RAM-Tutor Media" introducing a series of seven videocassettes covering physics; and (3) "Determination of the Velocity of Light" using a rotating mirror. (YP)

Discusses some incorrect representations of electric fields in textbooks. Considers total charge or charge density and two- or three-dimensional diagrams. (YP)

Discussed is the use of two short writing assignments and a peer review system in an undergraduate agronomy course to improve writing skills and the learning of agronomic principles. Provided is a course description and procedures used in the course. Student evaluation in the course is reviewed. (CW)

Described are six multipulse experiments with an emphasis on their application to common problems in chemistry. Exercises in relaxation time measurement, spin echoes, and polarization transfer are proposed. (CW)

Explored are several facets of the quality of the science curriculum at the undergraduate level. Discussed are maturation of disciplines, entry-level courses, the development of intellectual skills, and academic majors. Recommendations for college science departments are provided. (CW)