Provides a list of needed materials, required preparations, and instructions for demonstrating the dyeing of anodized aluminum. Discusses the chemistry involved and gives equations for reactions occurring at the anode and cathode. (JM)

Suggests that ideal experiments fit into course time constraints and be meaningful, relevant to course content, safe, inexpensive, simple, reproducible, and easy to set up/maintain. Describes a Boyle's Law experiment that uses a minimum of equipment and meets the foregoing criteria. Apparatus used, procedures, and safety precautions are…

Investigated application of binomial statistics to equilibrium distribution of ester systems by employing gas chromatography to verify the mathematical model used. Discusses model development and experimental techniques, indicating the model enables a straightforward extension to symmetrical polyfunctional esters and presents a mathematical basis…

Discusses the construction of various types of physics equipment from laboratory "bits and pieces" (parts of discarded/unusable equipment). Includes comments on constructing improvised equipment from similar bits and pieces in schools in Peru and the Caribbean. (JN)

Describes an experiment enabling students to apply concept of diffraction, determine limits of their color perception, learn how to measure wavelength with a simple apparatus, observe continuous and line spectra, and associate colors with corresponding wavelengths. The homemade diffraction-grating spectrometer used is easily constructed. (JN)

Describes inexpensive method of determining harmonic content of a repetitive signal such as a sound wave and demonstrations of the precession of a bicycle wheel and inversion shadows on the retina. Also describes a resonance demonstrator (made from scrap material) driven by a portable jigsaw. (JN)

Six books written in response to creationist arguments are reviewed. Indicates that the books should be of great utility in educating students in the sciences and in presenting the case for science, as separate from religion, to the uncommitted public. (JN)

Current research in plant genetics is described. Benefits of this research (which includes genetic engineering applications) will include reduction/elimination of crop diseases, assurance of genetic stability, and the creation of new crop varieties. (JN)

Provides list of mineralogy, petrology, and geochemistry computer programs. Each entry includes a brief description, program name and language, availability of program listing, and source and/or reference. (JN)

The purpose of constructing labels is to communicate those scientific facts related to hazards and to select and describe the reasonable precautions that should be taken to prevent otherwise unforseeable harm. Recent developments in the use of combined numeric and pictorial symbols in chemical label construction are described. (JN)

Trends in science teaching equipment include digital instrumentation and use of microcomputers as general purpose laboratory instruments. Describes interface units which exploit this capability of the microcomputer. Also describes materials supporting the teaching of electronics. (JN)

Describes a course which focuses student activities on the preparation of an environmental impact statement. The course provides undergraduate/graduate students with an intensive field ecology experience which exposes them to scientific principles of biology, environmental analysis, and quantitative sampling methods. Includes course format,…

Compared attitudes, interests, and values of students in physical geology and environmental earth science courses. Significant differences were not found as indicated by comparisons of precourse/postcourse scores. Interpretation of the results and descriptions of the two courses are provided. (JN)

Describes an advanced high school/college experiment that illustrates the mechanics describing the motion of a rolling ball. Includes procedures used, discussions of vectoral and mathematical (calculus) solutions to the investigation, and sample student results using the recommended materials. (JM)

Compared effect of six instructional strategies (discovery, two expository lessons, prototype development, interrogatory, and combination of interrogatory/prototype development) on concept learning of college students (N=230). Results suggest use of prototype developmental method alone or in combination with interrogatory method if high levels of…