The motivation and interpretation of the Fizeau experiment are reviewed, and its status as a test of special relativity is discussed. It is shown, with the aid of a simplified, purely mechanical model of the propagation of light in matter, that the experiment actually cannot discriminate between Galilean and relativistic kinematics. (Author/SK)

Describes different evaluation techniques of student performance in the science laboratory. Evaluation techniques discussed include written reports, test items, practical tests, and observational assessment to evaluate both student performance and to promote development of specific skills. (DS)

Many of the curricular reforms of the last decades merit continuation, it is argued, even if formal evaluations are difficult to establish. Self-regulation through internal audits and consultant review are seen as safeguards for the quality of innovative programs. (Author/MLW)

Summarizes a theoretical approach using nonbonding MO's and perturbation theory to correlate properties of saturated hydrocarbons. Discussion is limited to correctly predicted using this method. Suggests calculations can be carried out quickly in organic chemistry. (Author/SA)

Describes a nuclear debris collector which removes trace substances from the lower atmosphere during rainfall. Suggests that the collector could be implemented into courses at various educational levels and could result in developing a network for monitoring the geographical extent of nuclear contamination. (Author/SA)

The traditional experimental-control group method for evaluating delinquency prevention programs is questioned. It is contended that the method harms the intervention and exacerbates the deliquency problem. (JKS)

In this article, research on nonhuman animals is reviewed to show that there is no discontinuity between humans and other animals. For both, high density is not necessarily harmful. Rather, the effect of high density depends on other factors in the situation. (Author)

Describes a method utilized at Iowa State University for teaching a biochemistry laboratory course for non-majors involving the use of student independent projects and experimental choices. (BT)

The experiments described in this article discuss the versatility of the linear variation method in quantum chemistry and the ease with which it can be used with a simple computer program. (SA)

This is an experiment for college chemistry students in which they are introduced to gas phase and aerosal analysis and the chemical nature of cigarette smoke and its health hazards. (Author/SA)

Presents an idea for insect study with live organisms. The life cycle of the common housefly and the behavior of the adult and larvae are discussed. Activities for young students are given along with information for the teacher on the fly's life history. (SA)

A general theory of how children learn conservation concepts is presented. The acquisition process is described at an abstract level in terms of a rule-sampling system, implying a three-state Markov model with identifiable parameters. Three experiments testing the model's quantitative predictions about conservation learning experiments are…

Describes laboratory experiments of a chemistry course on advanced process control. The equipment for the process around which these experiments were developed by the University of Louisville was constructed from data provided by Exxon Oil Company. (HM)

Describes a resonance apparatus for the measurement of Cp/Cv for different gases. In the apparatus a magnetically supported piston in a vertical cylindrical glass tube containing the gas is forced into oscillation by means of a standard audio signal generator. (Author/GA)

Investigated is the period of a simple pendulum. The cases of the rigid rod and fexible cord are reviewed. By applying a variational principle it is proven that the first order correction to the period is the same for both the cord and the rod. (GA)