Presents an experiment designed to give students some experience with photochemistry, electrochemistry, and basic theories about semiconductors. Uses a liquid-junction solar cell and illustrates some fundamental physical and chemical principles related to light and electricity interconversion as well as the properties of semiconductors. (JRH)
Chemistry, Demonstrations (Educational), Electricity, Energy, Heat, High Schools, Laboratory Procedures, Light, Science Activities, Science Education, Science Instruction, Secondary School Science, and Teaching Methods
Recommends using dramatic demonstrations on the energy in chemical systems as an audiovisual adjunct to lectures and laboratory sessions. Lists materials needed and provides procedures including safety tips for various experiments to produce chemical light, heat, and electricity; and concludes with hints for preparation/rehearsal. (JM)
Journal of Chemical Education, v66 n6 p510-11 Jun 1989.
Chemistry, College Science, Electricity, Higher Education, Instructional Materials, Light, Overhead Projectors, Physics, Science Activities, Science Equipment, Science Experiments, Science Instruction, Science Projects, Teaching Methods, and Visual Aids
Presents two demonstrations using the overhead projector: (1) describes how to build a projecting voltmeter and presents uses for the classroom; and (2) investigates the color of fluorescent solutions by studying the absorption and transmission of light through the solutions. (MVL)