Describes the laboratory procedure to be used for an effective demonstration of aldol condensation. (CP)

Ethylene hydrogenation on a platinum catalyst, electrolytically applied to a tube wall, is a good system for the study of the interactions between diffusion and surface reaction in heterogeneous catalysis. Theoretical background, apparatus, procedure, and student performance of this experiment are discussed. (BB)

An engineering hardware display, slide-tape show, selected readings, and tests are used to help students become familiar with values, fitting, tools, and instruments. Sample exam questions and a list of hardware are given. (BB)

Presents a procedure for testing cholesterol level in patients. (SL)

Reviews the use of a programmable hand-held calculator for evaluating a student's performance on a quantitative laboratory experiment. (SL)

Brief suggestions on science laboratory and classroom labor-saving techniques are provided. (CP)

Reports the presence and use of known carcinogens in Kentucky colleges, junior colleges, and high schools. Includes a listing of known carcinogens and the synonym names under which each may be labeled. (SL)

Describes a method for testing the chlorine content of water. (SL)

Reviews safety practices for undergraduate organic chemistry laboratories. (SL)

Discusses the improvement of safety and health conditions in academic chemistry laboratories. Included are 14 recommendations for improving laboratory safety. (SL)

Includes methods for determining melting and boiling points, illustrating the Finkelstein reaction, choosing acid-base indicators, growing perfect NaC1 cubes and "whiskers," bromination of alkenes, using vanadium in the laboratory, preparing phenylamine-copper (II) sulfate (VI) complex, simulating first-order chemical kinetics on a programmable…

Includes methods for demonstrating Schlieren effect, measuring refractive index, measuring acceleration, presenting concepts of optics, automatically recording weather, constructing apparaturs for sound experiments, using thermistor thermometers, using the 741 operational amplifier in analog computing, measuring inductance, electronically ringing…

Includes methods for using harmonographs in demonstrating motion of pendulums, constructing an electrostatic "bell," inverting mirror images, demonstrating the corrosion rate of steel, demonstrating expansion, studying rate of reaction between magnesium and hydrochloric acid, using matchboxes in science for containers, problem boxes, building…

Described is the life cycle of the cellular slime molds Acrasiales. Experiments that can be used to explore the aggregation, migration, and culmination activities of the organism are suggested. Laboratory procedures for culturing these slime molds and listings of biological supply houses and literature references are also given. (MA)

Biomimetic chemistry is concerned with the synthesis of small, molecular weight molecules which mimic the properties of metal-containing sites within certain biologically significant species. A series of experiments for an advanced undergraduate laboratory is described as a way to introduce this area into the chemistry curriculum. (JN)