Presents background information, safety notes, and laboratory procedures for synthesizing dinitrogen and dihydrogen complexes of molybdenum. The one-step method described is suitable for advanced inorganic chemistry classes. (SK)

Presents seven notes on new equipment, techniques, or materials of interest to teachers of physics. A circuit of a low-cost computer terminal to audiovisual device interface, and a demonstration of the buoyancy of air are among notes presented. (HM)

Presents a physical chemistry experiment demonstrating the differences between thermodynamics and kinetics. The experiment used the formation of phenol and acetone from cumene hydroperoxide, also providing an example of an industrially significant process. (CS)

Describes the procedures for construction of a nitrate coated-wire ion selective electrode and suggests experiments for evaluation of electrode response and illustration of typical analytical applications of ion selective electrodes. (CS)

Presents an undergraduate experiment demonstrating sampling error. Selected as the sampling system is a mixture of potassium hydrogen phthalate and sucrose; using a self-zeroing, automatically refillable buret to minimize titration time of multiple samples and employing a dilute back-titrant to obtain high end-point precision. (CS)

Presents an undergraduate quantitative analysis experiment, describing an atomic absorption quantitation scheme that is fast, sensitive and comparatively simple relative to other titration experiments. (CS)

Reassesses a common textbook misconception that "...phenols cannot be esterified directly." Results of experiments are discussed and data tables provided of an effective method for the direct preparation of phenyl acetate. (CS)

Describes an advanced inorganic experiment employing the Faraday magnetic susceptibility system. (CS)

Lists eight guidelines for the use of live animals at the pre-university level adopted by the National Association for Biology Teachers in March 1980. (CS)

Describes an undergraduate experiment designed to verify quantitatively the effect of a dielectric fluid's dielectric constant on the observed wavelength of microwave radiation propagating through the fluid. The fluid used is castor oil, and results agree with the expected behavior within 5 percent. (Author/CS)

Presents a six-step problem-solving process which the author has used to present creative science investigations to fourth, fifth, and sixth graders. (Author/SJL)

A group of teachers' advisers and college tutors became interested in developing some "safe" science activities for junior high school physically handicapped students. A series of pacakage experiments on approximately 30 scientific principles were tested for potential drawbacks for the handicapped child. Several experiments are described. (SBH)

Presents results of a two-year study regarding factors causing student difficulties in performing investigative activities in a beginning biology course. Also investigates the usefulness of written guidelines in alleviating these difficulties. A model for student investigations is proposed. (CS)

Describes how the home toilet tank can be used as either a classroom problem or experiment that provides a simple introduction to process control. (HM)

Reports results of a questionnaire surveying opinions of university chemistry departments (N=34) that used integrated experiments in lower- and upper-level chemistry courses. Reviews general problems and advantages inherent in the use of this kind of experiment, which brings together material from several different areas of chemistry. (CS)