Provides procedures for growing from spores to demonstrate alternation of generations, life history, and morphology of pteridophytes. (CS)

Describes collection of quantitative samples of microorganisms and accumulation of physical data from a pond over a year. Provides examples of how final-year degree students have used materials and data for ecological projects (involving mainly algae), including their results/conclusions. Also describes apparatus and reagents used in the student…

Presents specific techniques for lectures and demonstrations in acoustics for deaf students. (SK)

Theoretical background, experimental procedures, and analysis of experimental results are provided for an undergraduate physical chemistry experiment on electron paramagnetic resonance (EPR) linewidths. Source of line broadening observed in a spin-spin exchange process between radicals formed in aqueous solutions of potassium peroxylamine…

Focuses on molecular weight and molecular weight distributions (MWD) and models for predicting MWD in a pedagogical way. In addition, instrumental methods used to characterize MWD are reviewed with emphasis on physical chemistry of each, including end-group determination, osmometry, light scattering, solution viscosity, fractionation, and…

Demonstrates that an electronic Josephson junction analog constructed from three integrated circuits plus an external reference oscillator can exhibit many of the circuit phenomena of a real Josephson junction. Includes computer and other applications of the analog. (Author/SK)

Listed are classroom resources--films and filmstrips, textbooks, multimedia kits, and cassettes--for science and health education. Included in each resource listing are a description of the content emphasis, organization and/or instructional method, objectives, recommendations/evaluations and, in some cases, student evaluations. Reading level is…

Presents two examples of physics demonstrations: (1) vibrating aluminum rod suitable for use in a small room, and (2) vibrating white rubber tubing suitable for use with larger audiences. (SK)

Describes a circuit designed to measure time-of-flight velocity and shows how to use it to determine bullet velocity in connection with the ballistic pendulum demonstration of momentum conservation. (Author/GA)

Assesses the educational state-of-the-art regarding physiological simulation. States the importance of conventional physiology laboratory exercises involving living material. (MA)

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)

Briefly describes 30 filmstrips in a series entitled "Experiments in Chemistry," suggested for use in lieu of a laboratory manual. (CS)

Discusses some examples of Fresnel diffraction. Diffraction effects caused by round holes, round obstacles, narrow slits, narrow obstacles, and transparent obstacles are included. (HM)

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)