Describes how to modify an electroscope so the charge can not leak out. (LS)

Presents results of a survey given to college students concerning the use of a planetarium in courses and their decisions to take the courses. (CP)

Describes the experimental apparatus and method for the study of magnetic vector potential (MVP). Includes a discussion of inherent errors in the calculations involved, precision of the results, and further applications of MVP. (GS)

Describes differences in the construction of a colorimeter and a photometer. Gives examples of ways in which light-measuring instruments can be used by biologists. These examples can be used either as class experiments or as individual projects. (GS)

Describes some "openers" to use in science class to attract attention, create interest or maintain interest. Some examples of materials that can be used are a radiometer, a drinking bird, Geiger-Muller Counter and a human skeleton. (BR)

Describes the inexpensive construction of an uptake volume potometer uptake and loss potometer, and experiments on plants that can be conducted with the equipment. (BR)

The teaching laboratory in physics departments in colleges and universities is a source of great potential strength in undergraduate education. Recent surveys and conferences, have identified inadequate teaching equipment and laboratory development. This report reviews these problems and offers suggestions for an enhanced federal effort to solve…

This resource guide is designed to provide Young Entomologists' Society (Y.E.S.) members and other interested entomologists with information on people and companies that sell entomological equipment, supplies, services, preserved and dried specimens, livestock, books, publications, slides and other visuals, gift or novelty items, and…

The lower level of participation of females in computer science courses is a continuing concern for educators. A number of different reasons for this lack of participation have been put forward, including differences in attitudes, bias, role models, differential treatment by classmates and teachers, patterns of computer use, availability of…