Small Experiment of Ball Track Model of Slide Physical Science Electric Whirl Assembly Ball Mechanical Trestle 12 Years Old+

Ball slide The steel ball slide uses the gear drive to transport the steel ball to the high point of the track, and then returns to the bottom of the gear through the funnel-shaped gyratory acceleration track, and then uses the electric device to achieve repeated circulation. Train children's hands-on ability and let them quickly understand the structure and principle of the artificial steel ball slide.