Invention

Explores such inventions as the wheel, gears, levers, clocks, telephones, and rocket engines.

9780756653491
book
Lexile: 
1 090
Illustrated Guide

Holdings

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41328307321141246189762710365HIHS255T000000HIHS418ERESOURCE TLC100017425694091742569409
41657387334123246989762710365KEHS274T000000KEHS336ERESOURCE TLC100017425694091742569409