TeacherGeek Ultimate Rubber Band Racer STEM | STEAM Activity Kit With TeacherGeek, kids use real tools to design and build their own unique vehicles powered by the energy stored in rubber bands Features FREE document resources - build guides, labs, friction worksheets, immersive Mars Rover presentations and engineering + design challenges for competitive innovation Compatible with recycling bin components, 3D printers or additional materials for endless solutions Encourages creativity, critical thinking, problem solving - empowers kids to become inventors, engineers and artists Explores concepts of potential + kinetic energy, simple machines, force, friction, elasticity, rations, mechanical advantage, motion