Reviews a science open house held at regular intervals at Yuba College, California. Enumerates the motivation for and the organization of the open house. Reports community wide attendance and participation. Lists the exhibits used at the open house with descriptions. (CW)

Discusses the current status and future direction of science at liberal arts colleges. Summarizes findings of a conference attended by leaders of 50 private colleges and small universities on college science. States that students from small colleges fare well in later science endeavors. (ML)

Describes a chemical engineering course for liberal arts students that is taught from a scientific, social, and symbolic perspective. A summary of the early days of oil refining is included as representative of one of the major content segments of the course. (ML)

Points out that discrepancies exist in secondary and college level teachers' perceptions of what is essential for student success in college science. Stresses that more research is needed and offers participation in the National Science Teachers Association "Every Teacher A Researcher" program as one means of addressing the concern.…

Describes two different approaches to joint teaching by a health educator and a physician. Provides the script for a dual monologue, which is the basis for the first teaching activity. The second example differentiates between traditional, transitional, and modern models of health educations and the role physicians play in each. (TW)

Discusses the use of ratio diagrams, which plot the calculations of equilibrium concentrations of the species of the carbonate system. Provides examples to describe how these diagrams can be used to illustrate the behavior systems of interest in volumetric analysis, where absorption or loss of carbon dioxide takes place. (TW)

Questions the current usage of the International System of Units (called SI units) in representing chemical notation and terminology. Suggests several additions to the system that relate to concentrations. Outlines new symbols for distinguishing between "concentration" and "molality." Includes tables to illustrate the proposed SI units. (TW)

Outlines a simple, inexpensive way of demonstrating electroplating using the reaction between nickel ions and copper metal. Explains how to conduct a demonstration of the electrolysis of water by using a colored Na2SO4 solution as the electrolyte so that students can observe the pH changes. (TW)

Provides background theory and an experiment relating to chemometrics. Describes the phenomenon where solutions are dichromatic or dichromic. Discusses the difficulty students have in describing such solutions that appear to be several different colors at the same time. (TW)

Discusses the importance of studying the far-from-equilibrium phenomena in college chemistry. Presents a system using the gas pendulum which displays all of the essential characteristics of dissipative systems. Promotes the use of the gas pendulum as a teaching example of a nonlinear far-from-equilibrium process. (TW)

Discusses the value of electrophoresis in the fields of protein chemistry and biochemistry. Describes how to build an inexpensive electrophoresis setup for use in either research or teaching activities. Details the construction of both the separating device and the power supply. (TW)

Presents a series of activities that use dinosaurs as a theme for teaching biological and geological concepts. The activities can be adapted for use with middle school through college level biology students. Exercises address such topics as: evolutionary relationships of vertebrates; Mesozoic ecology; animal tracks; and mineral replacement…

Describes a new software package for the Apple Macintosh computer which can be used to create elaborate simulation models in a fraction of the time usually required without using a programming language. Illustrates the use of the software which relates to water usage. (TW)

Includes the complete listing for a computer program which draws the best curve to fit calibration data obtained from a set of five standard solutions. (DH)

Explains the context in which courses aimed at improving problem-solving skills are implemented. Describes the structure and content of courses and evaluates activities designed to develop problem-solving skills, including a discussion of factors affecting students in their ability to perform. (JM)