Introduces an experiment involving the observation of Brownian motion for college students. Describes the apparatus, experimental procedures, data analysis and results, and error analysis. Lists experimental techniques used in the experiment. Provides a circuit diagram, typical data, and graphs. (YP)

Reports an experimental procedure for studying Einstein's theory of Brownian movement using commercially available latex microspheres and a video camera. Describes how students can monitor sphere motions and determine Avogadro's number. Uses a black and white video camera, microscope, and TV. (ML)

Presents sample laboratory activities designed for use in astronomy teaching, including naked eye observations, instrument construction, student projects, and cloudy weather activities. Appended are bibliographies of journal articles and reference books and lists of films, laboratory manuals, and distributors of apparatus and teaching aids. (CC)