Learn how Levers are used to increase force and lift heavy objects and how the use of levers can change the direction of motion. Build 6 working models including a parking gate, a sew-saw, 2 types of weighting scales and a wheel-barrow. A 36 page activity book is included with innovative experiments and detailed explanation of the different technological principles applied! Booklet with detailed building instructions also included Unassembled Kit. Requires Assembly. See Manual.

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