Presents the author's philosophy of science which is a synthesis of the ideas of E. Mach and K. R. Popper. Describes the implications and some applications of this philosophy to the art of teaching chemistry. (GS)

The purposes of the study were to make an analysis of the status of science teachers in the Allen Parish school system (Louisiana) for the 1969-70 school year, to identify the problems of science instruction, and to show a breakdown of laboratory exercises performed by science consultants during an inservice summer session. The first part of the…

Forty female subjects were given intermittent options to transmit noncontingent promises of intent to cooperate during the course of a mixed-motive laboratory game. In a 2 x 2 experimental design, a robot target either reciprocated subjects' promise statements or concealed her behavioral intentions, and was either always cooperative or always…

This paper reports an experiment carried out by a sixth-grade science class by a pupil as part of the requirements of the laboratory section of the class. (Author)

Describes an experiment that utilizes a Joule-Thomson Demonstrator to show the floating nature of the pinch-point in a heat exchanger. (MLH)

Describes an experiment illustrating a lesson in wave interference using bright colors in a soap film. Illustrations provided. (MA)

Compares the preparation and decomposition of potassium dibromoiodate and of phenyl iodine dichloride in a flexible experiment which accustoms the student to handle halogens, to test for halogens in mixtures, and to appreciate the difference between thermodynamic and kinetic control of reactions. (Author/MA)

Presents material dealing with an application of statistical thermodynamics to the diatomic solid I-2(s). The objective is to enhance the student's appreciation of the power of the statistical formulation of thermodynamics. The Simple Einstein Model is used. (Author/MA)

Describes an apparatus (built from domestic plumbing pipes and fittings) that uses only water and electricity (as consumables) to investigate basic mass and heat balances in a system with recycle. Also describes experiments using the apparatus. (JN)