Ecological, interdisciplinary, and interconnected laboratory lessons focusing on magneticism: (1) producing electric power; (2) magnetics and magneticism; (3) electomagnetism (2 parts); and turbines (2 parts). Lessons, designed as precursor for students to make choices in electricity production, use a directed inquiry approach. (MCO)

Presents research results on photosynthetic, carbon monoxide utilizing bacteria. Discusses applications of the research and offers three sets of experimental procedures and data that students analyze to determine which bacterium from a soil sample uses carbon monoxide fastest. (Contains 21 references.) (MDH)

Students explore three-dimensional properties by creating red and green wall decorations related to Christmas. Students examine why images seem to vibrate when red and green pieces are small and close together. Instructions to conduct the activity and construct 3-D glasses are given. (MDH)

A technique for studying various properties of soap bubbles subjected to deformation, accompanied by some representative experiments to illustrate the versatility of the method, is presented. The measurement of the change of force that occurs when a bubble is stretched is calculated. (KR)

Classroom demonstrations of selected mechanical properties of polymers are described that can be used to make quantitative measurements. Stiffness, strength, and extensibility are mechanical properties used to distinguish one polymer from another. (KR)

Describes problems with teaching embryology in the traditional manner. Presents a new approach where students prepare presentations, questions, and discussion topics. During laboratory periods, students conducted their own long-term research projects. (PR)

Describes a project to improve the science curricula and the science teaching skills of instructors in Houston-area two-year colleges in such a way that the program can be replicated in other locations. Two-year college faculty members were teamed with faculty from universities. (PR)

Describes the working of the Science Task Group on the place of investigation in the National Curriculum in England and Wales. (PR)

Describes relatively simple and inexpensive experiments for demonstrating the immune response to honeybee venom in the American cockroach, "Periplaneta americana." (PR)

Provides instructions for teachers and students to culture protozoans for use in science laboratories. Sections include setting up a culture area, basic culture media, amoeba culture technique, powdered milk-wheat-rice medium, alfalfa medium, and uses of the protozoa in the laboratory. (PR)

Describes a technique to isolate unsheared bacterial DNA and subject it to restriction endonuclease enzyme digestion. (MDH)

Describes an inquiry lab that helps students discover the chemical nature of enzymes. (PR)

Examines the role of practical activities in secondary science from an international perspective and contrasts this to a developing country's perspective. Discusses research studies on training teachers to include physics practical work in Indonesia and the benefits and constraints of implementing practical work in physics classrooms. Contains 37…

Describes a simple halogenation experiment that can be performed quickly in an open vessel at room temperature with visible light that is appropriate for the beginning weeks of an introductory organic chemistry course. (WRM)

Describes the transformation of PHY 101-02, an introductory physics course taught at Northern Virginia Community College, Annandale Campus, into a distance learning course by putting the lecture component on video tape and transforming the laboratory component into "at-home" labs. Course requirements may be completed on students' own…