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Students learn firsthand how STEM concepts such as gravity, force and momentum can create a chain reaction! Our kid-pleasing set challenges third- through fifth-grade students to build a variety of chain reaction courses—and comes complete with everything kids need to build from scratch, including switches, seesaws, hammers and more. Students simply grab a challenge 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 tracks, kids will find out whether their course works—fine-tuning the distance and angle of the pieces until the ball reaches the goal box. Perfect for building 21st-century skills like perseverance and STEM problem solving, our set even lets students create their very own chain reaction courses—for unlimited building possibilities! Set includes 59 tough plastic builders, 4 balls, 4 cords, 8 challenge cards, a “how-to” book and a guide


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