Kids Jigsaw Puzzle World : Astronomy & Universe - Game for Kids for learning

A jigsaw puzzle is a tiling puzzle that requires the assembly of often oddly shaped interlocking and tessellating pieces. Each piece usually has a small part of a picture on it; when complete, a jigsaw puzzle produces a complete picture. In some cases more advanced types have appeared on the market, such as spherical jigsaws and puzzles showing optical illusions. Kids Jigsaw Puzzles World Astrono…