Describes the use of electrophoresis in the high school utilizing two new gels that are easy to pour, do not require degassing, can be used on a horizontal gel electrophoresis, and are not neurotoxic or carcinogenic health hazards. Large diagrams and written instructions are used to present the protocol of setting up the electrophoresis. (PR)

A method of preparing a special dissecting tray to be used with transmitted light as well as reflected light is presented. It may also be used with an overhead projector to illustrate some skeletal structures in vertebrates. (Author/EB)

After discussing the ease of using the Fry Readability Graph, the author applies it to biology, chemistry, and physics texts, and lists the results. He warns that textbook authors and classroom teachers should be aware of the potential impact that the reading level of a text can have on students. (KC)

Presents an illustration to demonstrate the smallness of molecules; also a derivation of a temperature scale (Fahrenheit/Celsius) interconversion equation by plotting temperatures of one scale against corresponding temperature of another. (CS)

Describes the use of classroom-quality barometers and the construction of a simple and convenient model. (WRM)

Presents data on the readability of periodicals and textbooks commonly used by students studying school agriculture. (GS)

Compares differences in function and behavior of two oxygen-binding proteins, myoglobin found in muscle and hemoglobin found in blood. Describes the mechanism of oxygen-binding and allosteric effect in hemoglobin; also describes the effect of pH on the affinity of hemoglobin for oxygen. (CS)

Explains the techniques of experimenting with the protozoan Colpoda cucullus to learn about its habitats, dispersal and adaptations. (LS)

Explores the wave-particle nature of light by raising and answering the following question: "Can particle theory satisfactorily explain the experimental facts for light refraction?" (GS)

This series of experiments seeks to provide laboratory exercises which demonstrate concepts in Earth Science, particularly oceanology. Materials used in the experiments are easily obtainable. Examples of experiments include: (1) comparison of water hardness; (2) preparation of fresh water from sea water; (3) determination of water pressure; (4)…

Brief suggestions are given on the following topics of interest to chemistry teachers: rate of reaction anaologies, a buffer effect demonstration on the overhead projector, and a year-end activity in general chemistry based on the student's laboratory skills. (BB)

In response to an expressed need for inexpensive biological models for blind students, the American Printing House for the Blind has developed a set of 19 plastic models (schematics), which illustrate representative species of the major invertebrate phyla and component structures of flowering plants. (Author)

Provides instructions for building an inexpensive apparatus that measures the thrust of a model rocket engine as a function of time. (CS)

Presents some of the preliminary results of a survey study about the use of both the revised publications and GCE O-Level examinations for Nuffield Chemistry in 495 British schools and colleges in 1979. (HM)

Provides a framework that incorporates the diverse elements of risk management in science education into a systematic process and is adaptable to changing circumstances. Appendix contains risk management checklist for management, laboratory and storage, extreme biological and chemical hazards, protective equipment, waste disposal, electrical…