Pitsco Laser-Cut Basswood Wind Generator Kit (Individual Pack) Wind generator kit provides students in grades 6-12 a hands-on activity to build a model windmill that demonstrates the scientific concepts of alternative energy, energy transformation, and electricity production Includes laser-cut basswood parts and motor with a pre-soldered light bulb to build a wind-powered generator using scissors and glue for a variety of classroom settings Windmill design can be modified for a variety of experiments with additional blades or multiple windmills that work together Reinforces engineering, technology, and math concepts as students build and test a simple wind-powered generator Finished measurements are 9-3/8 x 6-5/8 x 6 inches (H x W x D)