Shows that the mutual repulsion that enables a superconductor to levitate a magnet and a magnet to levitate a superconductor can be combined into a single demonstration. Uses an overhead projector, two pellets of "1-2-3" superconductor, Nd-Fe-B magnets, liquid nitrogen, and paraffin. Offers superconductor preparation, hazards, and disposal…

Discusses computer simulations for chemistry courses. Reviews a simulation program, "Evaluation of Bonding Theory: The Werner Jorgensen Controversy," and provides information regarding hardware requirements for the program. Presents the idea of an expert system including simulation modules and counselor modules. Describes some chemical examples, a…

Discusses an undergraduate course for developing interest in and skills for research. Provides a course outline and briefly describes each part of the outline. (YP)

Discusses the flotation method for the determination of the density of solids. Provides the stepwise experimental procedure with typical data tables and graphs. (YP)

Presents an overview of coatings along with paint preparation labs. Provides students with information about and methods for preparing a product that is an integral part of daily life. Gives methodology which can be used to prepare oil based and water based paints. (MVL)

Reports that although excitation at 337nm is less than optimal, detection limits in the range 1-100pg/ml were found. Provides a calibration curve and results for seven organic compounds. (MVL)

Describes a science presentation which promotes various ways to improve laboratory safety. Recommendations for storing chemicals include: minimize the type and amount of stocked materials, purchase certain chemicals in small quantities, and use plastic embedments. Cites several books for reference. (RT)

Explained is an interdisciplinary assignment in which students use scientific knowledge and apply it in a practical situation. Provided is background information and precautions regarding safety procedures. (RT)

Investigates the effect of increase of the M demand of chemistry problems, having the same logical structure, on performance of students having different functional M capacity, cognitive style, and formal operational reasoning patterns. (Author/YP)

Compares graduate chemical engineering education practices of the U.S. and Japan. States that Japanese universities have set time limits on degrees due to industrial hiring practices. Concludes that Japanese graduates are highly trained and uniform. They tend to stay in the same job throughout their career. (MVL)

Presents a high school chemistry lab experiment using tin (II) chloride to explore the concepts of hydrolysis, Le Chatelier's principle, and electrolysis. Presents methodology and the chemistry involved. Offers questions for the students. (MVL)

Describes classroom activities and models for migration, mutation, and isolation; a diffusion model; Bernoulli's principle; sound in a vacuum; time regression mystery of DNA; seating chart lesson plan; algae mystery laboratory; water as mass; science fair; flipped book; making a cloud; wet mount slide; timer adaptation; thread slide model; and…

Describes two general spreadsheet templates to carry out all types of one-equation chemical equilibrium calculations encountered by students in undergraduate chemistry courses. Algorithms, templates, macros, and representative examples are presented to illustrate the approach. (PR)

Reports on a survey of Indiana University Master in Library Science (M.L.S.)-Chemical Information Specialist program graduates. Information includes graduates' educational background; the nature of first jobs and current positions held; and databases most frequently used. Graduates generally favored more training in computer skills, patent…

Presents activities from an interdisciplinary project studying local watersheds that incorporate a broad spectrum of disciplines including science, math, geography, English, computer science, and political science. Enables students to understand how precipitation changes chemically as it interacts with the soils and human-altered landscape as it…