At grades 10 and 12 in high school, and in the universities, a science cognitive style was identified. Students with a high science orientation are characterized by high conceptual differentiation; high categorizing flexibility with objects; high preference for analytic-descriptive concepts; high originality; low preference for…

Described is a general electroconductivity device enabling students to determine sulfur dioxide concentration in a particular location, hopefully leading to a deeper understanding of the problem of air pollution. (DF)

Describes a company established to stimulate the interest of sixth formers in industrial scientific fields and the chemical industry. Interest can be generated by letting the students be concerned with the decision making and problem solving normally encountered in industry. (DF)

Short articles describe preparation of clean iron sheet for corrosion experiments, models of crystalline structures using glass marbles, photographic production of diffraction grids for producing analogies of X-ray diffraction patterns, and a simple method of determining a reactivity series for the common metals. (AL)

Short articles describing the construction of a self-testing device for learning ionic formulae, problems with standard'' experiments in crystallizing sulfur, preparative details for a cold-setting adhesive and vermillion dye, and providing data related to the industrial manufacture of sulphuric acid. (AL)

Short articles describe a method of introducing the study of simple harmonic motion, and suggest models that are analogues for impedence matching, electrical transformers, and birefringent crystals. (AL)

Short articles describe techniques useful for junior high school science classes, including a method of filling barometer tubes, a method of tracing magnetic fields without loss of iron filings, and a technique for efficient storage and retrieval of overhead projector transparencies. (AL)

Reports the results of surveys of the use of animals by secondary school teachers and participants in science fairs. Recommends wider use of invertebrates and suggests sources of ideas for animal experiments. (AL)