Describes construction of a variety of relatively inexpensive cameras for astronomical purposes. (CP)

Photographs illustrate several principles of physics which can be observed in everyday situations. (CP)

Details a method of taking short interval photography with inexpensive equipment. (CP)

Photographs and text describe techniques by which color negative film can be developed and printed. An equipment list, by which black and white printing facilities can be converted to make color prints, is provided. (CP)

Presents an experiment to demonstrate the diurnal and seasonal motions of the sun, which can be used in different grade levels, depending on the degree of difficulty required for the analysis, as an effort to generate student interest in the scientific method. Includes an activity to teach students elementary concepts of the sun's apparent motion…

Describes how astrophysics can be a do-it-yourself project within a school boy's budget and background, by giving detailed instruction on equipment construction. In addition, this article describes many experiments to undertake, with the equipment, such as determining color temperature, star spectra, chemical composition and others. (BR)

Describes a method for identifying and examining single ice crystals by photographing a thin sheet of ice placed between two inexpensive polarizing filters. Suggests various natural and prepared sources for ice that promote students' insight into crystal structures, and yield colorful optical displays. Includes directions, precautions, and sample…