Includes four devices for generating electricity; hand generator (mechanical motion) volt potential 110, Phase I, battery holder (chemical
energy) battery not included, a solar cell (light energy) and windmill (wind energy), and three devices for using electrical energy; LED (generating light), Motor (generating motion), and Buzzer (generating sound). A set of connector cords with alligator clips connect devices to each other in appropriate combinations. Includes teacher’s manual. Grades 7-12.