Describes the preparation of suitable solid electrolytes and cells which may form the basis of a laboratory teaching program designed to illustrate a variety of electrochemical ideas. ( Author/CP)

Reports on a computer batch program that will not only perform routine grading using several grading algorithms, but will also calculate various statistical measures by which the class performance can be evaluated and cumulative data collected. ( Author/CP)

Describes a synthesis of chrysanthemic acid which has been used successfully in a laboratory course. (Author/CP)

Reports on an undergraduate laboratory course designed to provide instruction and practice in the intellectual skills of application, analysis, and synthesis, and in Piaget's formal operations. A 10-item exam used to measure these skills is included as an appendix. (Author/CP)

Information concerning an undergraduate level experiment on the effects of surface forces is provided. (CP)

Describes the use of nuclear magnetic resonance (NMR) spectroscopy to study a three-component system and the technique by which to define a ternary phase diagram. (CP)

Presents four simple laboratory procedures for: preparation of organometallic compounds, a realistic qualitative organic analysis project, a computer program to plot potentiometric titration curves, and preparation of stereoscopic transparencies. (SL)

Describes an organic chemistry laboratory exercise which uses thermochromic compounds to study the thermodynamic effect of temperature on chemical equilbrium. (SL)

Suggests a series of science activities in botany for the elementary school classroom. Contains suggestions on the care and propagation of the coleus plant. (CP)

Describes a series of polarography experiments using commercially available pulse polarography instruments. (SL)

Provides demonstrations using digital display instruments of some of the mass and pH-related topics covered in first-year chemistry courses. (CP)

Explains the theory and laboratory construction procedures of a positive photoresist. (CP)

Describes a laboratory procedure which does not demand sophisticated equipment. (CP)

Reviews several schemes for organizing science laboratory objectives and activities and for analyzing several techniques designed to measure these laboratory outcomes. The need for further study and analysis of psychomotor behaviors in science education is emphasized. (HM)

Experimental procedures for studying enzyme activity using a Spectronic 20 spectrophotometer are described. The experiments demonstrate the effect of pH, temperature, and inhibitors on enzyme activity and allow the determination of Km, Vmax, and Kcat. These procedures are designed for teaching large lower-level biochemistry classes. (MR)