Presents five biology notes which could be used in school biology and ecology courses. Each includes the name of the author and a description of activities suggested. (HM)

Describes an approach to ecology teaching based on a workbook of structured integrated exercises and in-service courses for teachers. (Author/MA)

Summarizes archeological activities associated with the Danes School Archeology Project in New Bern, North Carolina, which provided students in grades six through nine with experiences in working on an archeological dig site. (CS)

Discusses parametric oscillators and parametric instability. A simple, easy-to-construct system which exhibits parametric instability is presented. The two lowest-order resonances are described and analyzed in detail. The analysis stresses the physical and intuitive aspects of the problem. (Author/HM)

Describes an advanced laboratory experiment that introduces two important reactions in organophosphorous chemistry, the Arbuzov and the Atherton-Todd reactions. (CS)

Provides information concerning self-acceleration and self-inhibition phenomena and a description of an experiment in alkane pyrolysis that exemplifies these phenomena. (CS)

Describes an experiment used to study dielectric properties of materials. Values of the dielectric loss tangent can be determined at low frequencies from Lissajous figures formed on an oscilloscope. Some mineral rock specimens show Debye-type relaxation peaks at frequencies in the region of 1 to 500 Hz. (Author/DS)

Describes a Malaysian school project which deals with tin, and extracting tin from its ore in the laboratory, as well as the economics involved and the locating and mining the ore. (HM)

Presents computer assisted instruction (CAI) applications involving prelab simulations of organic chemistry experiments in advance of performing the actual experiments. Tables present the PLATO lessons used in the laboratory; and a comparison of average times for students to complete laboratories with and without the PLATO system. (CS)

Describes an undergraduate physics experiment for studying Curie temperature and Curie constant of a ferromagnetic material. The exchange field (Weiss field) has been estimated by using these parameters. (HM)

Describes the project of a fourth- and fifth-grade class in simulating a moon walk. Teams consisted of the astronauts, the life support team, the flight program team, the communications team, the scientific team, and the construction team. Their visit to the Marshall Space Flight Center is also described. (SA)

Describes activities appropriate for involving middle school students as active participants in the learning process. Topics discussed include archaeology, bulletin boards, dramatizations, physics experiments using the human body, oceanography, and ecology. (CS)

Describes techniques for studying the diet of a wild animal through the examination of regurgitated owl pellets. (CS)

Described are graphic computer simulations of laboratory experiments in modern physics developed for student use prior to each laboratory and which replace pre-lab briefing. Experimental simulation is intended to familiarize the students with the experiment, and to allow the students to try a larger number of "experimental" combinations of…

Describes the basic procedures for use of an electron-spin resonance spectrometer and potassium azide (KN3) in an experiment which extends from the phase of sample preparation (crystal growth, sample mounting, and orientation) through data taking to the stages of calculation and theoretical explanation. (Author/DS)