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)
This book contains 25 experiments designed to help students understand some of the science used every day. Each experiment includes a list of materials, a series of easy-to-follow steps, an explanation of the scientific principle demonstrated, and additional scientific facts and information. No special or expensive materials are required. Experiments are organized into five parts: light and optics, heat, earth science, chemistry, and electricity and magnetism. Experiments have imaginative names such as, "I Can See for Miles and Miles,""Steamed Fruit,""Grace under Pressure,""Hi-Ho Silver," and Dimmer Dementia." The book includes a glossary of terms and a reader reply form to suggest experiments created by students or teachers. (MKR)
This book was written on the premise that learning science should be fun and rewarding. The teacher may use it as the foundation for an extended middle school curriculum spanning more than one year or to supplement an existing curriculum with individual sections or exercises from the book. The activities have been organized and designed in a manner that allows the teacher tremendous flexibility. Each activity provides a clear purpose, step-by-step directions, leads easily to conclusions, and includes a teachers guide that has the following parts: goals, student objectives, prelab discussion, guide to the investigation, vocabulary, and additional resources. The guide contains seven sections: "Measuring Physical Quantities"; "Forces, Work and Energy"; "Heat"; "Electricity";"Magnetism"; "Waves of Sound and Light"; and "Hands-On Chemistry." (JRH)
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)
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)