Children learn to apply STEM principles just like an engineer and rocket scientist! The step-by-step illustrated activity guide contains 9 different builds, educational science content, 18 Stem experiments and ٢think bigger٣ challenges kids to practice the scientific method. Constructing their own launch tower allow kids to be creative, learn about rockets and its foundation. Includes: 98 page book with jam-packed information to keep kids learning, K'NEX pieces, tubing, custom pumps, and foam rocket. A great science kit for kids looking for hands-on fun and learning. 9 builds include: pneumatic - catapult, rocket launcher, submarine, and air carhydraulic - brake, dump truck, drawbridge, butterfly, and digger.