Describes the development and provides an example of the type of student investigation that is now considered sufficient for the practical part of the 'A' level physics examination. (GS)

Discusses the preparation and properties of nitrogen oxides and the reaction of magnesium with nitric acid. (MLH)

Discusses a multipurpose organic chemistry experiment that illustrates a variety of reaction types within a single, three-hour laboratory period. (MLH)

Describes the determination of vanillin and of other aromatic aldehydes by amperometric titration with 2, 4-dinitrophenylhydrazine. (MLH)

Describes a method in which metals can be identified by the direction of the e.m.f. generated when the junctions in a circuit containing two dissimiliar metals are at different temperatures. (MLH)

Describes an experiment that utilizes a potentiometric, redox titration in N, N-dimethylformamide. (MLH)

Describes a simple experiment using an inexpensive RCA 931A photomultiplier, in which a measurement of the secondary electron emission coefficient is measured at the last dynode. (MLH)

Describes the chemistry of dyeing, including acid, basic, vat, and disperse dyes. Includes laboratory experiments. (MLH)

Describes eleven laboratory experiments, including the catalytic effect of copper in zinc-acid reaction; a study of the rate of polymerization of some aldehydes; and a demonstration automatic potentiometric titrator. (MLH)

Discusses a laboratory experiment in which uranium is isolated by the reduction of uranyl acetate. (MLH)

Describes the synthesis of a sweetening compound that requires seven laboratory periods of three-hours duration. (MLH)

Describes an entry into the synthesis of the cyclopropenone series that is designed for the undergraduate organic chemistry laboratory. (MLH)

This study was an experimental investigation of the effects on cognitive learning of training students to use behavioral objectives. (Editor)

College students were randomly assigned to seven note-taking and review conditions in order to determine the relative importance of the functions of encoding and either an externally provided or a personally produced memory device. (Editor)

Describes a laboratory procedure for separating a mixture of plastics representative of scrap plastic using various solvents and solubility techniques. (MLH)