Snap Circuits Alternative Energy Kit makes learning about electricity and alternate energy FUN. With over 125 projects to build, youngsters will have endless hours of fun while learning about circuits, electricity, geothermal power and lots more. Contains over 40 parts, including the award-winning Snap Circuits, plus an instruction manual and educational manual that show step-by-step instructions for all the cool stuff you can do. For ages 8-108. Warning: Choking hazard, small parts. For ages 8 and up.