Describes an experiment in bilingual education whereby two classes, one selective in ability and the other representing varying degrees of ability, were taught Georgraphy through French, as a first step toward French-medium instruction for other subjects. (AM)

Describes an experiment in which a 500-A-thick silver film is evaporated on the hypotenuse face of a right glass prism. The surface plasmon mode in the film is excited with a He-Ne laser. The dispersion relation for the surface plasmon and the reflectivity due to the excitation of this mode are calculated. (Author/MLH)

Describes an experiment that enables the student to concentrate on the fundamentals of the non-ideal liquid-vapor equilibrium. Presents typical student data and suggests features which might be added to the experiment. (GS)

Describes a simple tensiometer which provides good approximations to Young's Modulus and acceptable tensile test curves. (Author/GS)

Outlines the theory of chemical potentiometry, describes the experimental procedure for free fluoride determination, and presents sample data of fluoride concentration for various brands of toothpaste. (GS)

Describes a method of time-of-flight determination utilizing a sound-actuated switch, an electronic flash, and a loaded camera. (GS)

Describes a calibration technique for a small motor which, when driven as a generator, can be used for a speedometer. The generator output can be fed to an oscilloscope to provide a sweep in which the vertical axis is velocity and the horizontal axis, time. (GS)

Explains a method of exploiting recent interest in automobile safety to demonstrate, qualitatively, concepts of momentum and energy. (GS)

Describes a series of experiments which provide excellent evidence for different degrees of dissociation of a series of complexes and precipitate. The series is based on the copper ion as the acid and sample data are provided. (GS)

Summarizes physics laboratory experiments with applications in the biological sciences. Includes the following topics: mechanics of the human arm, fluid flow in tubes, physics of learning, the electrocardiograph, nerve impulse conduction, and corrective lenses for eye defects. (Author/MLH)