Some observations of general progress and of gender-related differences in achievement when using construction sets in the early years are presented. Included are the results of two studies which examined the use of Lego construction sets by children age six to eight. (CW)

Outlined is the development and use of oxidants for use in elementary organic chemistry classes. Discussed is the oxidation of alcohols to carbonyl compounds, and the oxidation of primary alcohols or aldehydes to carboxylic acids. (CW)

Discussed are the construction and uses of a version of a photoelectric colorimeter by students. Included are materials needed and four experiments which use the equipment. Sample results are shown. (CW)

Discussed is the conceptualization, development, and formative evaluation of a series of science education videodiscs. The formative data indicated that videodisc programs can enhance the effectiveness of teachers and substantively impact student achievement and attitudes. (Author/CW)

Discusses the issues of animal hunting. Provided is a comparison table of the hunter's view and anti-hunting activists views with six questions to consider. Lists 5 references. (YP)

Described are some computer software that can be used in chemistry classrooms: (1) "Polymer Tacticity in Simulated NMR Spectra"; (2) "Teaching Magnetic Resonance Imaging Using Computer Animation"; (3) "Emergency Response Database"; (4) "An X-ray Diffraction Pattern Simulator"; and (5) "Multiple-Choice…

Provides three classroom examples showing students how chemical engineering techniques can supply partial answers to social questions, such as environmental issues. Examples are depletion of the ozone layer, nuclear winter, and air pollution by chemical solvents. (YP)

The materials needed and the procedures used in three microscale chemical laboratory experiments are detailed. Included are a microscale organic synthesis, a two-step synthetic sequence for the microscale organic laboratory, and a small-scale equilibrium experiment. (CW)

Described is a microscale organic chemistry experiment which demonstrates one feasible route in preparing ortho-substituted benzoic acids and provides an example of nucleophilic aromatic substitution chemistry. Experimental procedures and instructor notes for this activity are provided. (CW)

Describes the manufacturing method for a high-temperature ceramic superconductor. Presents detailed procedures and pictures showing the manufacturing process. (YP)

Presents an experiment to show the energy conservation principle using a bow. Describes how to measure the force and work of the bow and the initial velocity of an arrow. (YP)

Develops a realistic group problem-solving exercise to analyze information, make deductions from presented facts, draw conclusions, and communicate these processes to others. Describes the national education system of New Guinea, the exercise, and some comments. Provides a technical and economic report and a worksheet for the exercise. (YP)

Reviewed are two computer software programs for Apple II computers on weather for upper elementary and middle school grades. "Weather" introduces the major factors (temperature, humidity, wind, and air pressure) affecting weather. "How Weather Works" uses simulation and auto-tutorial formats on sun, wind, fronts, clouds, and…

Describes making a cardboard frog. Discusses the physics of various motions of the frog. Provides diagrams showing how to make the frog, the motions, and the mechanics formulas. (YP)

Provides step-by-step procedures for developing an index which uses the Gunning Fog technique to evaluate the level of reading difficulty of textbooks. Cites examples, illustrations, and several warnings in the discussion. (RT)