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"Students learn how STEM concepts such as gravity, force, and momentum can create a chain reaction with this set. It comes with everything 3rd through 5th graders need to build a variety of chain reaction courses from scratch, including switches, seesaws, hammers, and more. Students grab a challenge card, design and build each of the pictured components with help from the “how-to book,” then set up their course. With a drop of the ball onto the...
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