Creat-A-Chain Reaction STEM Kits- PreKGr.2 (Master Set - 73 pieeces)

Kids set off a chain reaction of fun! Our sets let pre-k through second-grade students set up a course of ramps, pendulums, hammers and more…then drop a ball onto the tracks and go for the goal box! After each test run, kids will fine-tune the placement, distance and angle of each piece—getting firsthand practice with STEM concepts such as gravity, force and momentum! Packed with super-durable pieces, these sets are perfect for open-ended building—or kids can use the leveled challenge cards to?create a variety of different courses from scratch! Our sets come with super-tough plastic pieces—including tracks, pendulums, hammers, switches, a goal box and more—plus balls, challenge cards and a guide. The tracks measure 12" in length.