Learn the basics of electronics and modern alternative energy Explore clean energy concepts such as electric cars windmills and hand generated power Includes full color manual and separate Think Green educational manual that explains environmentally friendly energy including geothermal hydrogen fuel cells wind solar tidal hydro and others Perfect for environmentalists and future engineers Features . Snap Circuits Green Energy. Explore clean energy concepts such as electric cars windmills and hand generated power. Explains environmentally friendly energy. Perfect for environmentalists and future engineers. Over 125 Projects Includes . full color manual and separate Think Green educational manual Specifications . Weight 3 lbs