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This hands-on construction kit brings engineering and physics to life as it demonstrates the power of air pressure at work. This motorized, multi-legged machine uses an ingenious system of suction cups to walk on smooth vertical surfaces, like windows and glossy panels. Assemble the robot to learn about its inner mechanisms, including gears and an electric circuit complete with motor, battery, and switch. Then experiment to see which types of surfaces the Gravity Bug can climb best. Read about how suction cups work and how this robot climbs. Build a mighty robotic bug that defies gravity to crawl up, down, and all around windows with ease. Kit includes 78 pieces and full-color step-by-step illustrated assembly instructions. For ages 8 and up.
