Adults are hard pressed to get youngsters to leave the 16 hands-on exhibits at this museum just west of Wilmette. Here toddlers to eight-year-olds can learn about solar power or how sounds make music. They can don a white jacket and be pretend doctors in a baby nursery or vets in an animal hospital. Kids really get into home construction in "Hands on House" and tire changing at "Car Care," and, of course, there is a spot to put on raincoats and play in the water. When weather permits, the 2-acre "Habitat Park," just outside, is a great place for bug hunting, wall painting, and wandering through a grass maze.