Stereoscopic photo activities for students are described for the purpose of motivating students in earth science. Included also is the necessary equipment for obtaining the three-dimensional effect. (SA)

Illustrated and described is a convection box for classroom use to stimulate concept development in elementary school children. Other equipment and apparatus that may be used in open-ended science activites are listed. (CS)

Described are ways in which urban "rocks" (building stones, curbstones, sidewalks, etc.) can be used as resources for earth science teachers. Discussed are such activities as: classifying buildings according to rock type and mineral composition, extrapolating geologic history by examining common building materials, economics of stone industry, and…

Describes a method to form on a large fixed screen the succession of the diffraction patterns on the different infinity. This method is designed to be used in a college physics course. (HM)

Presents details of anodic stripping analysis (ASV) in college chemistry laboratory experiments. Provides block diagrams of the analyzer system, circuitry and power supplies of the automated stripping analyzer, and instructions for implementing microcomputer control of the ASV. (CS)

Describes a first-year chemistry experiment that illustrates the fundamental concepts of a photoinduced reaction. Qualitative and quantitative parts of the photoreduction of potassium ferrioxalate are detailed. (CS)

Describes an advanced level experiment in which a transition metal cluster compound, cyclopentadienylcarbonyliron tetramer, is synthesized and characterized spectroscopically. Its redox properties are then explored through cyclic voltammetry. (CS)

Describes the process of collecting and maintaining a culture of protozoa. Instructions are also given for constructing a micropipette for transfering small organisms. (SA)

The author's love of birdwatching, translated into a quilt depicting the sightings of various species, served as an inspiration for many elementary school activities centered around birds. Activities included building a bird blind, making bird scrapbooks, setting up feeding stations, and making a class quilt. (SB)

Describes an exercise which is currently used in a course in cell physiology at Oxford Polytechnic in England. This exercise can give students some idea of the molecular events involved in bringing about movement of chloroplasts (and other organelles) in plant cells. (HM)

Investigates the effect of the nonuniform irradiance across a laser beam on diffraction of the beam, specifically the Fraunhofer diffraction of a laser beam with a Gaussian irradiance profile as it passes through a circular aperture. (GA)

Spectroscopic aspects of the triboluminescence spectra of three Lifesaver candies are discussed. Emphasis is placed on the experimental methods of measuring spectra and origins of the tribaluminescence. (SA)

This experiment, in which students experiment on themselves, involves carrying out analytical methods for vitamin C using instrumental and "wet" techniques. (SA)

Describes an experiment in which an air table is used to measure the moment of inertia of air pucks with various radii and mass loadings. (BT)

Presents three activities that allow students to practice some of the techniques used by lunar researchers, and to become more familiar with lunar features through scrutiny of lunar photography. Topics include dimensions of a crater, different surface ages, and types of rilles. (Author/MA)