K'nex Education - Intro to Simple Machines: Levers and Pulleys - 8yrs+Hands on learning at it best! The KNEX Education's Intro to Simple Machines: Levers & Pulleys set is designed to introduce students to the scientific concepts associated with two types of Simple Machines levers and pulleys. Build 8 fully functioning replicas of real world machines, one at a time. Introduce students to scientific concepts related to simple machines through hands on learning. Includes 178 K'NEX parts and pieces packaged in a convenient
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K'nex Education - Intro to Simple Machines: Levers and Pulleys - 8yrs+