Presents data, covering 1971-74, concerning grading and instructional systems at 92 college chemistry departments. Among the conclusions were that all of the institutions use the traditional letter grading system and that grade distributions and patterns have been stable. (MLH)

Describes a placement test in general chemistry containing two paper-and-pencil Piagetian tasks. Results for 885 students accounted for only 21 percent of the criterion variable (predicted grade); suggest various reasons for this low correlation. (MLH)

Presents laser demonstrations of the surface photoelectric effect and the measurement of the laser beam wavelength; recommended for teaching the relationship between light energy and wavelength. (MLH)

Israeli tenth-grade students completed a chemistry laboratory course by either performing the experiments or by viewing films of the experiments. Among the results of an attitude test given to both groups was that students find personalized laboratory more effective than films in promoting their interest in chemistry. (MLH)

Describes 20 chemical demonstrations designed for elementary school science classes. These can be presented as a magic show, but each illustrates one or more of seven basic chemical concepts. (MLH)

Describes an introductory chemistry course for nurses in which students learn basic chemical principles by performing 12 chemical analyses that are routinely conducted on body fluids and listed on a patient's clinical laboratory chart. (MLH)

Presents short questions and answers on biochemical topics, such as respiration, enzymatic reactions, symbiotic relationships, and oxygen consumption of sea animals. (MLH)

Describes an undergraduate experiment in which the structure of bis(2-ethylhexyl)phthalate (I) is analyzed and interpreted using Carbon-13 magnetic resonance. (MLH)

Describes an undergraduate organic chemistry experiment in which papain is used as a catalyst for the stereospecific formation of an insoluble anilide from a racemic benzoylamino acid. (MLH)

Describes an experiment in which the iodonation of aniline reaction is shown to undergo catalysis in solution of sodium lauryl sulfate which forms micelles with negatively charged pseudo surfaces. (MLH)

Describes a biochemistry experiment that illustrates the methodology of affinity chromatography by attaching avidin, a glycoprotein in egg white, to a Sepharose matrix in order to bind biotin-containing proteins. (MLH)

Describes the quantitative analysis of a gaseous mixture using peak heights and ratios between the peak heights. (MLH)

Describes a unified experiment in which an optically transparent thin layer electrode is used to illustrate the techniques of thin layer electrochemistry, cyclic voltammetry, controlled potential coulometry, and spectroelectrochemistry. (MLH)

Describes an experiment in which gas viscosity coefficients over a large temperature range are used to determine the parameters of the intermolecular potential energy and other properties such as virial coefficients. (MLH)

Describes oscillograph-type laboratory recorders and accessory equipment such as paper drives, printing mechanisms, amplifiers, and integrators. (MLH)