Explore the fascinating science of pneumatics (air) and hydraulics (water) while applying STEM principles just like an engineer! Moving Creations is created in partnership with k'nex. The step-by-step illustrated guide contains 9 different builds, educational science content, 18 STEM experiments and "Think Bigger" challenges to practice the scientific method. Includes a 98-page book with storage box, k'nex pieces, tubing, custom pumps, and rocket.