Early Civilizations by Jan Smith, Steve Boulter, Gerry Bailey

48 pages first pub 2005 (editions)

informative medium-paced
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Describes the basic science principles and the history behind many inventions including Archimedes' screw, the sundial, the chariot, the crane, a windmill, block printing, and the wheelbarrow. Includes hands-on problem solving and make-and-do proj...

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