The laboratory instruction sheet (sometimes called a laboratory manual), together with the equipment used by students, is an essential resource for laboratory work. It has a direct influence over all the interactions that can occur in the laboratory activity, of which student-equipment is the only common synchronous interaction in both…

Describes three accessories developed to be used in conjunction with the rotating platform or turntable. Three demonstrations using these accessories are included. These demonstrations are: (a) conservation of angular momentum; (b) gravity-defying goblets; and (c) direct measurement of centripetal force. (HM)

This publication was developed as a portion of a two-semester sequence commencing at either the sixth or seventh term of the undergraduate program in electrical engineering at the University of Pittsburgh. The materials of the two courses, produced by a National Science Foundation grant, are concerned with power conversion systems comprising power…

Recommendations are given for obtaining high quality preparations of chromosomes with relatively little equipment using an improved Feulgen-squash technique. (Authors/SA)

Presents a method for microscopically examining cytoplasmic streaming in root cells, and physiologically examining the delivery of ions to the xylem exudate. The expected result does not occur and the authors believe that students learn to re-examine the assumptions, thereby increasing their skills in scientific inquiry. (Authors/SA)

This handbook is based on a list of essential topics that should be mastered by the student who subsequently plans to pursue college chemistry. Chapters include: (1) "Introduction" (describing a position paper and the background of the handbook); (2) "Essential General Topics and Objectives"; (3) "Testing Students"…

A programmed instruction course was developed, consisting of fifteen experiments encompassing eleven separate pieces of equipment operational in a solar and energy conservation lab. The programmed instruction manual for the lab was evaluated and revised during a workshop. This evaluation indicated that both the lab and manual are valuable tools…