Mini solar building kits teach children the benefits of solar energy while they create a toy that is both fun to play with and requires no batteries. The 6 in 1 Educational Solar Kit is an excellent beginner building kit designed to teach how solar power is used to drive a small motor. Children use the 21 snap-together parts (no tools required) to build six different working models including an airboat, windmill, puppy, car, and two different planes.