Using examples this article tries to dispel a common misconception that theories "mature" into laws by constant testing and confirmation. (GA)

This inexpensive, effective chemiluminescence demonstration requires minimal preparation. It is based on the oxidation of oxalyl chloride by hydrogen peroxide in the presence of an appropriate fluorescent sensitizer. The reaction mechanism is not completely understood. (BB)

Two statistical tools, the Chi-square and standard error approaches, are compared for use in Mendelian genetics experiments. Although the Chi-square technique is more often used, the standard error approach is to be preferred for both research investigations and student experiments. (BB)

Describes how involving the students' bodies in the study of certain scientific principles, such as center of gravity, pendulums, and volume by water displacement have resulted in building up their interest and increased their motivation toward learning science. (GA)

Describes the use of a small digital computer to simulate a peripheral nerve demonstration in which the action potential responses to pairs of stimuli are used to illustrate the properties of excitable membranes. (Author/MA)

Describes a computer-based instructional model for the physiology laboratory. Attempts to develop an efficient and low-cost system designed to provide dynamic student/machine interaction are discussed. (MA)

This symposium focused on the question: can colleges afford to continue offering high quality laboratory instruction at the undergraduate level. (Author/BB)

The purpose of this paper is to present problems (and solutions) from the areas of marketing, population planning, system reliability, and mathematics to show how a computer simulation can be used as a problem-solving strategy in probability. Examples using BASIC and two methods of generating random numbers are given. (Author/MP)

Describes an oscillating chemical reaction, and discusses numerous parallels to it in research, such as in fibrillation of the heart, body-clock rhythms of animals and plants, the self-assembly of multicellular organisms, and certain stripes in volcanic rock. (GA)

Presents a calorimetric experiment designed to clarify some of the basic physics of heat transfer and insulation. (GA)

Explains the idea that a half-length mirror is sufficient to view the whole length, regardless of distance. (GA)

Describes the intuitive approach used in general chemistry and points out its pedagogical advantages. Explains how to extend it to acid-base equilibrium calculations without the need to introduce additional sophisticated concepts. (GA)

Describes a simple inexpensive experiment designed to measure the levels of cortisol in a serum or plasma sample. (Author/GA)

Describes three experiments to demonstrate several aspects of artificial radioactivity. Metal foils were activated, using slow neutron bombardment. (GA)