Provides a list of needed materials, required preparations, and instructions for demonstrating the dyeing of anodized aluminum. Discusses the chemistry involved and gives equations for reactions occurring at the anode and cathode. (JM)

Suggests that ideal experiments fit into course time constraints and be meaningful, relevant to course content, safe, inexpensive, simple, reproducible, and easy to set up/maintain. Describes a Boyle's Law experiment that uses a minimum of equipment and meets the foregoing criteria. Apparatus used, procedures, and safety precautions are…

Cognitive preferences of chemistry students (N=156) in School of Basic Studies (SBS) at Ahmadu Bello University (ABU) were investigated. Results indicate that the four preferences (recall, principles, application, questioning) appear to be unrelated to sex and location of previous school for these Nigerian subjects. (JN)

The purpose of constructing labels is to communicate those scientific facts related to hazards and to select and describe the reasonable precautions that should be taken to prevent otherwise unforseeable harm. Recent developments in the use of combined numeric and pictorial symbols in chemical label construction are described. (JN)

Lists and briefly describes computer programs recently added to those currently available from Project SERAPHIM. Program name, subject, hardware, author, supplier, and cost are provided in separate listings for Apple, PET, TRS-80 I or III, IBM, VIC-20, TERAK, and PDP-11 microcomputers. Includes corrections for two current Apple programs. (JN)

Three psychometric methods for validating learning hierarchies were applied to one data set derived from student responses (N=269) to items representing skills in a hypothesized hierarchy for the mole concept. The hierarchy derived from the analysis was supported by a test for transfer of learning from subordinate to superordinate skills.…

Two descriptive chemistry experiments are presented which foster development of students' skills in making observations and deductions. In addition, the experiments are designed to stress the importance of chemical behavior and clear presentation of experimental findings. (JN)

The need for mathematical background in biology and chemistry instruction is described, with specific mathematical topics noted. The extent to which they are covered in mathematics classes is discussed, as is the usefulness of science in mathematics instruction. (MNS)

Outlines several ideas on introductory electrochemistry material suitable for college-level general chemistry. These include discussions of conductivity in solids and electrolytes, electrical quantities/properties, electrode potentials, and membrane potentials. Indicates that whatever strategy is used to present this material, the presentation…

Discusses engineering ramifications of electrochemistry, focusing on current/potential distribution, evaluation of trade-offs between influences of different phenomena, use of dimensionless numbers to assist in scale-over to new operating conditions, and economics. Also provides examples of electrochemical engineering education content related to…

Describes use of Warnier-Orr program design method for preparing general chemistry tutorial on ideal gas calculations. This program (BASIC-PLUS) is available from the author. Also describes a multipurpose computerized class record system at the University of Toledo. (JN)

Discusses various aspects related to negligence on the part of chemistry teachers. Areas addressed include negligence in tort law, avoiding negligence suits, proper instructions, proper supervision, equipment maintenance, and other considerations such as sovereign immunity, and contributory versus comparative negligence. (JN)

Discusses the chemistry and chemical engineering curriculum, programs, and activities at Delft University of Technology (Netherlands). Chemistry and chemical engineering are combined into a single department (subdivided into 10 workgroups) at the state-supported university. An outline of the four-year study program (which includes research/design…

Topics addressed in this review of chemistry in the troposphere (layer of atmosphere extending from earth's surface to altitude of 10-16km) include: solar radiation/winds; earth/atmosphere interface; kinetic studies of atmospheric reactions; tropospheric free-radical photochemistry; instruments for nitric oxide detection; sampling…

Describes major features of a computer-operated, cybernetic potentiostat and the development, design, and operation of the software in ROM. The instrument contains control circuitry and software making it compatible with the static mercury drop electrode produced by EG&G Princeton Applied Research Corporation. Sample results using the…