Addresses the issue of whether traditional high school chemistry is needed for all students as preparation for the study of college level chemistry. Recommends an approach which stresses applications and societal issues for high school students. (ML)

Describes efforts in devising a method for determining sulfate quickly and accurately from rainwater samples. Explains the design and operation of the apparatus and identifies the solutions for the testing. (ML)

Contains two articles relating to chemistry examination questions. One provides examples of how to sequence multiple choice questions so that partial credit may be given for some responses. The second includes a question and solution dealing with stereoisomerism as a result of free radical chlorination of a nonstereoisometic substance. (TW)

Discusses the advantages of using content specific problem solving as a vehicle for undergraduate instruction in biology, and describes different software tools used to implement this model. The areas discussed include simulated laboratories, the construction of binary classification schemes using computer programs, and scientific writing using…

Describes two experiments for demonstrating the properties of osmosis and semipermeable membranes. Gaseous and liquid osmosis are studied through the use of common laboratory chemicals and equipment. Offers explanations for the phenomena with diagrams. (ML)

Reports two methods for interesting children in chemistry. Describes a method for producing large soap bubbles and films for study. Examines the use of simple stories to explain common chemical concepts with example given. Lists titles of available stories. (ML)

Describes statistical analyses of tests used for organic chemistry classes and attempts to pose a model to explain the results. Concluded that students who possess a slight grasp of a concept actually have less of a chance of answering an item correctly than those who merely guess. (CW)

Explains that triglycerides consist of a mixture of different compounds, depending on the total number of fatty acid constituents. Details the method and instrumentation necessary for students to analyze a vegetable oil for its triglyceride content. Describes sample results. (CW)

Presents the organization of a one-semester graduate course in structural chemistry including lectures and problems. Discusses the coverage of diffraction from real crystals and structure determination. Summarizes experiments on real crystals conducted by students in the X-ray laboratory. (CW)

Describes three flame test demonstrations including "Student-Presented Demonstrations on the Colors of Transition Metal Complexes,""A Flame Test Demonstration Device," and "Vivid Flame Tests." Preparation and procedures are discussed. Included in the first demonstration is an evaluation scheme for grading student…

Describes a strategy for using computer technology to save time when checking the data and calculations of students. Provides information regarding software and hardware used. (YP)

Should a prism be centered to measure the apex angle and refraction index? Concludes that centering the prism is not critical, and that there is an interval for which the prism can be displaced. (YP)

Addresses many questions teachers might have about incorporating writing in science curricula. (JK)

Describes the history of the human understanding of polymers from alchemy to modern times. Discusses renaissance chemistry, polymers in the nineteenth century, synthetic elastomers, thermoplastic elastomers, fibers, coatings, adhesives, derivatives of natural rubber, thermosets, step-reaction, and chain polymerization. (CW)

Discusses trends and issues in polymer chemistry. Includes developments in mechanical, thermal, electrical, and optical behavior. Illustrated are some structures and characteristics of polymers. (CW)