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1993. Alfred DeVito. Contains more than 40 activities involving the use of 35mm canisters. Activities range from metric activities, constellation viewers, pendulums, motor boating, ramp rollers, 35mm gardens, bubble pipe and blow pipe, to floatability and density. These activities can be utilized to enhance the process skills of science such as observing, measuring, inferring, predicting, and experimentation. 40 pages, soft cover, b&w photos and illustrations.