Laboratory techniques, instructional materials, and teaching methods for secondary school chemistry topics are provided. (CP)

Presents an experiment in which students prepare salt-water taffy, and concrete props for teaching weak acids and bases. (SL)

Reviews the International Baccalaureate (IB) chemistry program. (SL)

Presents an integrated chemistry curriculum based upon major concepts. (SL)

Provides an up-to-date summary of the state of the science in the field of applied atomic fluorescence spectrometry. (SL)

Second part of an article reviewing structural formulas. (SL)

Discusses building memory ability, Agatha Christie's and Sherlock Holmes' chemical abilities, and excerpts from now unpublished laboratory manuals. (SL)

Describes the construction of an inexpensive visual aid to be used for explaining the dynamics of gases. (CP)

Discusses the teaching of chemistry and physics in grades 7, 8, 9, and 10 in Denmark's schools and presents sample science activities. (SL)

Describes a computer program that allows undergraduate students to undertake nomenclature tutorials in organic chemistry, where user response is evaluated based on a set of rules that determine appropriate feedback. Design of the software is described, including the use of computer graphics, and results of students' evaluations are briefly…

Undergraduate science education at liberal arts colleges and historically Black institutions will be the focus of a program of grants given by the Howard Hughes Medical Institute. Colleges were invited to submit proposals to strengthen their biology, chemistry, mathematics, and physics programs. (MLW)

Discusses some of the differences between margarine and butter, focusing on the chemical differences. Provides a brief historical overview of the development of both commodities. Describes the manufacture of butter and of margarine, and details the differences in chemical composition and nutritive contents. (TW)

Discusses the use of thin-layer chromatography (TLC) in the chemical laboratory as a quantitative method for determining the molecular weights of organic compounds. Describes a simple method which provides an illustration of the importance of polarity on solubility and demonstrates the effectiveness of TLC as a quantitative tool. (TW)

Describes how to construct an electronic device to be used in conductivity experiments using a 35 millimeter film canister, nine volt battery replacement snaps, a 200-300 ohm resistor, and a light-emitting diode. Provides a diagram and photographs of the device. (TW)

Reviews trends in laboratory safety found in both industrial and academic situations. Reports that large industrial labs generally have excellent safety programs but that, although there have been improvements, academia still lags behind industry in safety. Includes recommendations for improving lab safety. (ML)