Presented is a discussion focusing on teaching radioactivity in the schools. The author suggests equipment available and experiments that can be performed. (PEB)

A number of activities are described by which a class can collect biological data about the students in the class. Brief instructions are given. (RH)

Described are some uses of a 35mm single lens reflex camera as a tool for the applied study of ecology. Photography is discussed in relation to field trips, ecosystems, general ecological concepts, pollution, and special projects. (PEB)

In order to propogate information on the World Year of Physics (WYP) and to promote students' appreciation of the significance of this event, the author devised a riddle about Einstein and implemented it at two high schools in Taiwan, with 95 students which were mainly based on Einstein's publications in 1905. During the game 81% of the students…

Describes an experiment designed to familiarize students with the operation of a precision spectrophotometer, the effects of changes in operating variables, and the characteristics of such components as sources and detectors. (SLH)

Describes four experiments designed to introduce students to the methodology associated with the construction, evaluation, and use of ion-selective electrodes. (SLH)

Describes a method for the accurate determination of partial specific volume of a protein. Method is simple enough to include in the undergraduate physical chemistry laboratory but requires patience and careful handling which provide good training in laboratory techniques. (SLH)

Describes an interesting, inexpensive, and highly motivating experiment to study uniform and accelerated motion by measuring the position of a car as it crashes into a rigid wall. Data are obtained from a sequence of pictures made by a high speed camera. (Author/SLH)

Describes eight activities using a swimming pool in which elementary school children can simulate collecting data from the oceans. (JR)

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)