b'STEMKids build and test different designs, sharpening problem-solving skills! Pre K2nd GradeCREATE-A-CHAIN REACTION STEM KITS - PRE K-GR. 2PP565nStarter SetKids set off a chain reaction of fun!Our super-engaging kits let children set up37 super-tough plastic piecesincluding tracks, pendulums, hammers, a a course of ramps, pendulums, hammers and morethen drop a ball onto theswitch, a goal box and moreplus 4 balls, 6 challenge cards and a guide. tracks and go for the goal box!After each test run, kids will fine-tune theTracks are 12" long.99.95placement, distance and angle of each piecegetting firsthand practice withPP566nClass SetSTEM concepts such as gravity, force and momentum!Packed with super- 67 durable plastic piecesincluding tracks, pendulums, hammers, switches, durable pieces, each kit is perfect for open-ended buildingor kids can use thea goal box and moreplus 6 balls, 10 challenge cards and a guide.Tracks leveled challenge cards to create a variety of different courses from scratch!are 12" long.(Shown.)159.95 K5th GradeTT231nJUMBO SIMPLE MACHINE BUILDERSStudentsgethandsonwith STEM as they build jumbo-size simple machines!From a real-workingdollytoafunctioning pulley system, kids can design and construct different contrap-tionsthen use them to explore motion, weight, gravity & more. Plus,oursetincludeskid-friendly materials like predrilled wooden boards and easy-grip nuts&boltsthatmakecon-struction a cinch!You get 279 pieces;longest board is 37 12 ". Buckets not incl.799.95Chunky nuts & bolts are easy for little hands to connect!wintergreen.ca 9'