With Greenex: Robotic Run Science Kit Keep your car running using the power of the sun or even your own movement. This rear wheel drive car can be set up to run using solar power or if there's no light use the hand generator and have control over the back
Greenex: Solar & Salt Water 3-In-1 Go Science Kit connects kids to the Environment! With this transforming robot car your kids can have a blast building and playing with their solar and salt water powered creation!
Easily change from a wagging-tail dog, running beetle, walking crab, surfer; speedster, zombie chaser! With alternative energy playing such a pivotal role, there is no better time than now to start children on the path to learning basic concepts behind these technologies.