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Levine, Shar; Johnstone, Leslie – 1995
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.…
Descriptors: Chemistry, Earth Science, Electricity, Elementary Education

Murphy, Richard S.; Kwasnoski, John B. – Science Teacher, 1985
With an aquarium and a few tools, a simple apparatus to quantitatively illustrate absorption rates of light passing through fresh, salt, and other waters (such as distilled water) can be constructed. Students learn that extinction rates are different and that the intensity/depth relationship is exponential. (DH)
Descriptors: Earth Science, Laboratory Procedures, Light, Optics