Discusses the measurement of electrons ejected from a system which is being irradiated with X-rays or ultraviolet photons, and a theoretical model for calculating core-electron ionization energies. (MLH)

Discusses the energies, structures, and efficiencies of interconversion of the various electronic states within transition metal complexes. (MLH)

Describes a Grignard reaction in a step synthesis that can be used in the laboratory to demonstrate several experimental and instrumental techniques. (MLH)

Describes an experiment that follows the progress of a chemical reaction with radiochemical tracer techniques, using the beta-emitting radioisotope iodine 131. (MLH)

Describes a student computer experiment that shows how the properties of the star, the temperature, and the opacity determine the nature of the observed spectrum of a star. (MLH)

Describes the use of magnets to simulate s, p, and d atomic orbitals from which a wide variety of molecular orbitals can be derived. The technique gives students an idea of molecular orbitals' shapes and stresses the importance of symmetry labels. (MLH)

Describes the construction of an amplifier and force transducer that can be used to demonstrate electrical activity in nerve and muscle using the gastrocnemius muscle and sciatic nerve of the frog. (MLH)

Discusses a theoretical model that uses a game as a base for studying processes of a stochastic nature, which involve chemical reactions, molecular systems, biological processes, cells, or people in a population. (MLH)

Introduces methods of studying fossil plants and of teaching palaeobotany. Brief accounts are given of different types of preservation and where to find specimens. An annotated bibliography is provided. (Author/SL)

Presents preliminary findings of results of tests of Piagetian cognitive development to predict success in introductory undergraduate physics courses. Grades were predicted with good success. (SL)

Described are the planning and execution of a project to record by color slides and video-tape recorders the pertinent learning experiences gained during field trips, so that the information can be made available during periods when it is not practical to repeat the field trips. (SL)

Listed, with comments and descriptions, are the addresses of suppliers of crystal and molecular models. Included are United States and English suppliers. (SL)

Presented are the results of an approach to teaching physical chemistry designed to increase student motivation. Student achievement in a course utilizing motivation variables such as self-pacing, no dropping of grades, no pop-tests, and taped lectures, indicated significant gains over a course taught by a traditional approach. (SL)

Discusses the philosophy and organization of an introductory college physics course that emphasizes laboratory experiments. Also presents a brief outline of the laboratory work. (MLH)

Describes an introductory laboratory physics course covering dynamics, fields, and waves. The course involves six hourrs of laboratory work and six hours of self-study every two weeks. Understanding concepts rather than laboratory techniques is stressed. (MLH)