Mazes Small Group Pack K-8th Learners design a ramp path so a ball zigs, zags, and zooms into a hoop, then connect their maze to a partner's to build one long run. It is a... $69.50 Straw Structure Small Group Pack Pre-K-8th Learners connect jumbo paper straws into shapes, then into towering 3D structures as tall as they are, then team up to reach the ceiling. It t... $69.50 Monster Mouth Small Group Pack K-5th Learners design their own monster and give it a pneumatic, air-powered mouth that opens and closes as they push and pull. Character design, st... $59.50 Linkages Small Group Pack K-8th Learners connect cardboard levers and pivots into moving mechanisms, then hide them inside creatures and characters, like animals that dance a... $69.50 Monster Claw Small Group Pack 3rd-8th Learners build a cardboard claw and power it with air, using pneumatics, so pushing one piston opens and closes the claw at the other end. It ... $69.50 Electric Vehicle Small Group Pack 3rd-8th Learners wire a motor and gear into a working electric car and watch it drive. Swapping two wires reverses the polarity and sends it backward.... $69.50