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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 7 working models including a parking gate, a see-saw, 2 types of weighing scales and a wheelbarrow. A 36 page activity book is included with innovative experiments and detailed explanations of the different technological principles applied! A Booklet with detailed building instructions is also included.

$ 39.99

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