Explore the various parts of our solar system with fun and educational illustrations from the Hello World line of books. Enjoy puzzling with your little one to learn about space! Match space illustrations and names with facts about the solar system in this set of twenty 2-piece matching puzzles. For a different challenge, color and then match pictures to more complex facts on the back of each piece. “Color me” backs assist in fine motor skills. Graduated learning makes the educational value last longer as a kid grows. For ages 3+