A cracked smartphone . a forgotten waffle iron . a beat-up skateboard . some old skis - in the world of the ReBotz . old tech and discarded junk are given new life. This squad of four loveable robot pals springs into action from a heap of junkyard parts. Quickly piece together a motorized model of each ReBot from a set of easy-to-assemble parts. Then . switch them on and watch how each robot moves in a unique and wacky way. Collect all four kits and mix up the interchangeable parts to make your own rebooted robotic creations. These science-fiction models provide an opportunity for some real science lessons. Conduct experiments with the different simple machines and mechanisms that make the robots move . including cams . springs . sliders . cranks . motors . wheels . and levers. + New line with four different build-it-yourself robots that each have a unique design and movement + Learn how different mechanisms make the robot models move in fun ways. + Conduct experiments with cams . springs . sliders . cranks . motors . wheels . and levers. + Mix and match the parts from different kits to make your own wacky robotic creations that look like theyre made from recycled parts. + Battery-powered motors Spring into action! This jumping robot is made from the tracks of an old snowmobile . a waffle iron . and some rubber bands. + Fast and easy to build + Demonstrates cams . springs . and motors in action + Powered by an electric motor + Combine the parts from different ReBotz kits to build your own creations.