SCIENCE
Gardner, Robert

Simple Machine Experiments Using Seesaws, Wheels, Pulleys, and More: One Hour or Less Science Experiments

(4) 4-6 Last-Minute Science Projects series. Typical science activities are sorted by the amount of time they take to complete--all under an hour, for readers desperate to meet their homework deadlines. Step-by-step directions, diagrams, and full explanations of the results undermine the learning potential, although each experiment is accompanied by good but easy-to-bypass suggestions to "keep exploring." Reading list, websites. Glos., ind. Review covers these Last-Minute Science Projects titles: Atoms and Molecules Experiments Using Ice, Salt, Marbles, and More, Electricity and Magnetism Experiments Using Batteries, Bulbs, Wires, and More, Energy Experiments Using Ice Cubes, Springs, Magnets, and More, Human Body Experiments Using Fingerprints, Hair, Muscles, and More, Simple Machine Experiments Using Seesaws, Wheels, Pulleys, and More, and Solids, Liquids, and Gases Experiments Using Water, Air, Marbles, and More.

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