Background information on the methods and varieties used to demonstrate the cultivation of plants without the use of chemical pesticides is provided. Discussed are species and variety selection, growing plants from seed and from seedlings, soil preparation, using cuttings, useful crops, and pest control. (CW)

Described are simple experiments designed to demonstrate the effect of some factors of the environment (dryness, temperature, and fungicide application) on the size of some populations of soil microorganisms. Materials, media, techniques, procedures, and results are discussed. (CW)

Described is the five-week Governor's School course emphasizing chemical reactions for high school seniors. Students took two courses: a subject concentration in humanities or science and a global issues course. The course format included both lecture and laboratory activities. (KR)

This paper reports on the success of a laboratory teaching technique for teaching undergraduate chemistry. Discussed are the premises of the approach, and the use of the computer, the explorations, and the seminar which are included in the course. (CW)

Describes a computer applications course developed for undergraduate biology students (primarily sophomores) to teach word processing, database and spreadsheet programs, graphing programs, telecommunications, and file transfer procedures. AppleWorks software is discussed, course content is explained, and the microcomputer laboratory is described.…

Describes a three-day classroom activity combining criminal investigations and scientific skills, especially observation skills. Provides detailed classroom procedures with an illustration of eight basic fingerprint patterns and a classification chart. (YP)

Describes the monitoring of the redistribution of blood by using a technique which detects changes in the center of gravity of the body. Provides information about the principles and application, construction of apparatus, operating routines, and use of the computer as a recorder. Includes suggested investigations, demonstrations, and diagrams.…

Reprints an article originally appearing in "English Education" (v20 n2; May 1988; See EJ370079). Addresses problems currently faced by writing labs: training staff; incorporating usable word processing; and establishing working relationships with both academic and nonacademic communities. (JAD)

Presented are three demonstrations: "The Construction and Use of Commercial Voltaic Cell Displays in Freshman Chemistry"; Dramatizing Isotopes: Deuterated Ice Cubes Sink"; and "A Simple Apparatus to Demonstrate Differing Gas Diffusion Rates (Graham's Law)." Materials, procedures, and safety considerations are discussed. (CW)

Described is a method of teaching laboratory report writing to undergraduate students. The sections of student lab reports are reviewed and compared with scientific papers. The writing process including drafts and peer review is discussed. Results of the use of this method are provided. (CW)

Directions for the construction of a model bog habitat are provided including examples of plants and animals which may be suitable. Activities that use this model are suggested. Background information on the ecology and chemistry of the bog is included. (CW)

Presented are two applications of computer technology to chemistry instruction: the use of a spreadsheet program to analyze acid-base titration curves and the use of database software to catalog stockroom inventories. (CW)

Summarizes the capabilities of a computer program related to forest fertilization. Provides a description of input parameters, some sample exercises, software specifications, and availability information. Additional references are listed. (Author/RT)

Discussed are selected application and future trends in supercritical fluid chromatography (SFC). The greatest application for SFC involves those analytes that are difficult to separate using GC or LC methods. Optimum conditions for SFC are examined. Provided are several example chromatograms. (MVL)

Twenty-six student volunteers participated in an eight-hour self-instructional program and were compared to students in a control group. Analyses of covariance with perceptual ability test indicated that the experimental group statistically significantly outperformed the control group on all but one preparation. (Author/MLW)