The school system, programs, textbooks, teachers, supplemental studies, and special schools of the Soviet Union are discussed from the point of view of two Soviet students. Secondary school and college education are the primary focus. (CW)

Presented are two cases of simple geometrical calculations involving the large numbers of atoms that are encountered in two ordinary situations. Included are questions about the spatial implications of the genome and a mole of hydrogen. (CW)

The solution to this problem is discussed using the same calculations as when calculating the temperature of a planet. The confirmation of these calculations by doing an experiment is described. (CW)

The experience of one high school in New York State offering physics to freshmen is described. Advantages and disadvantages of this approach are discussed. Curriculum alternatives within the New York State guidelines are presented. (CW)

Significant information on the relative thickness of plutons, the structure of poorly exposed or concealed magnetic units, and possible evidence of mineralized ground are discussed. The techniques used to produce images that reveal the new information are described. A list of 34 references is included. (CW)

Presented is a science activity which explains the discrepancies found between summer and winter solstice sunrise and sunset times. Used is a mathematical equation which takes into account the earth's changing speed and the tilt of the earth. (KR)

Investigates the relationship between knowledge of geometrical optics and the understanding of the phenomenon of colored shadows through adult interviews. Reports that the knowledge of geometrical optics facilitates the pinpointing of the color problem while experience with the mixing of paints may act as a barrier. (Author/YP)

The nature of cluster analysis and dendograms, subjects, tasks, and results of this study are described. Categories for problems were based on assumptions about the methods used by novice and expert problem solvers in a physics context. (CW)

Discusses experiments with students and teachers in a project to encourage girls to achieve their full potential and to consider nontraditional career choices. Describes a two-week practice program and opposition to the project from teachers and girls. Outlines an extensive course in physics and effects of the course. (YP)

Described is a science activity which illustrates the principle of uncertainty using a computer simulation of bacterial reproduction. Procedures and results are discussed. Several illustrations of results are provided. The availability of a computer program is noted. (CW)

Discusses some incorrect representations of electric fields in textbooks. Considers total charge or charge density and two- or three-dimensional diagrams. (YP)

Presented is a review of important science news stories of 1989 as reported in the pages of "Science News." Topics include anthropology, astronomy, behavior, biology, biomedicine, chemistry, environment, food science, math and computers, paleobiology, physics, science and society, space sciences, and technology. (CW)

Directions for the construction of an electronic version of an electroscope are provided. Demonstration and operation of this apparatus is discussed. A list of components and a schematic diagram are provided. (CW)

Describes three activities: "Solar Approach to Ohm's Law," dealing with the Ohm's law and the inverse square law; "Using LED's to Demonstrate Induced Current," showing Faraday's law and Lenz's law by using light emitting diodes (LEDs); and "The Helium-Filled Organ Pipe," discussing a discrepancy between theory and experiment. (YP)

Describes a lesson which integrates thinking, writing, and physics. Provides examples of student involvements, a list of typical topics, and additional notes to the teacher. (RT)