Describes a drying experiment useful in presenting the concept of simultaneous heat and mass transfer. Background information, equipment requirements, experimental procedures, and results are provided. The reasonably good agreement in the calculated rate of drying and that observed experimentally makes students feel confident in applying…

Describes an undergraduate physical chemistry experiment in phase equilibria which equilibrates potassium iodide solutions of known concentration with solid iodine. (MLH)

Describes a procedure for studying the kinetics of the second-order hydrolysis of ethylene bromohydrine in alkaline medium by incorporating a substance that changes color as one of the reacting components is depleted. (MLH)

Describes a laboratory experiment that utilizes NMR Spectroscopy to determine the rate constant for the C-N bond rotation in dimethylacetamide. (MLH)

This paper provides psychological and sociological substance to Kurt Lewin's conceptions of topological territories. (Author/AM)

Describes a physics experiment in single and multiple slit diffraction and interference phenomena that illustrates the existence of diffraction gratings in many common objects. (MLH)

The universities and institutions that deal with undergraduate education generally have a traditional organizational structure: their human resources are allocated to departments which are structured on subjects, and the persons are grouped according to their specialization profile. As a result of this, it has been observed that many groups are…

Behavioral objectives with minimum performance levels and illustrations are presented. The objectives are suggested on the basis of two arguments: first, they provide a basis for selection of laboratory content; second, they are stated in currently acceptable form. (DF)

Describes sequence of activities for teaching three-point linkage concept and gene-mapping to high school biology students. Includes laboratory experiments and hypothetical examples for classroom discussion. (PS)