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In this interactive program, students go through a series of buildings (the house and the tool shed) and rooms trying to guess where the simple and compound machines are and how they are used. As they click around on the different parts of each room (like the faucet in the bathroom), the parts come to life shortly before a couple of questions are posed about that machine. Essential vocabulary (lever, pulley, wedge, screw, and incline) is covered in a fun, entertaining way.