The use of participatory lecture demonstrations in the classroom is described. Examples are given for the following topics: chromatography, chemical kinetics, balancing equations, the gas laws, kinetic molecular theory, Henry's law of gas solubility, electronic energy levels in atoms, and translational, vibrational, and rotational energies of…

The electrode is a lead dioxide-silver plated wire. Construction of the electrode is simple, straightforward, and provides valuable laboratory experience. (Author/BB)

Explains some experiments involving thermal methods of analysis for undergraduate chemistry laboratories. Some experiments are: (1) the determination of the density and degree of crystallinity of a polymer; and (2) the determination of the specific heat of a nonvolatile compound. (HM)

Describes a computer model kinetic theory experiment for the college physical chemistry laboratory. (HM)

This manometer is a modification of a design reported previously. It contains simplifications in the design of the manometer itself and in the associated electrical circuit. The apparatus is useful in the study of gas-phase reaction kinetics. (BB)

Describes a blood coagulation test developed by two high school biology students. Although the test lacks some precision, results indicate that the technique is comparable to standard methods used in laboratories. (MA)

Describes an experiment utilizing the Solvay synthesis of sodium hydrogen carbonate to teach students to organize and plan a synthesis procedure. (SL)

This experiment, mixing solutions of potassium iodide and lead nitrate to give a bright yellow lead iodide precipitate, often leads students into other topics such as making paint from the precipitate. (BB)

Reviews development and first two years' experiences of a laboratory course of inquiry into the nature and processes of American civilization through examination of local history as symptomatic history. Faculty, graduate fellows, and advanced undergraduates collaborated on research and analysis of the relationship of culture, environment, and…

Discusses reasons and need for experimental laboratories in engineering education. (SL)

U.S. colleges of pharmacy were surveyed in 1976 to determine whether a trend exists in continuing, discontinuing, or restructuring laboratory time in pharmaceutical education. Data regarding core undergraduate pharmacology courses, undergraduate pharmacology laboratory status, and pharmacology faculty are presented. (LBH)

Efforts to establish a library for laboratory instructional materials is being initiated by a group of concerned university educators. The main function of this library will be to collect descriptions of biological systems and supporting materials that are effective in laboratory instruction. Contributors are being solicited. (Author/MA)

Describes two procedures for the conversion of eugenol to vanillin

Describes laboratory equipment which has been modified to accommodate visually handicapped students enrolled in regular university level laboratory science courses. (SL)

Described are the morphology, eating habits, and habitats of three types of Bryozoan colonies. Information on where to collect these organisms and how they can be cultured are included. Suggestions are given for lab experiments that can be done with type three colonies and Euglena. (MA)