Chemistry Quest Let's Adventure into the World of Chemistry Gentosha A chemical bonding game devised by a genius elementary school entrepreneur. You can learn about atomic bonding in a fun way. This card game is enjoyable for children who are beginning to take an interest in the formation of matter, as well as for middle school students who are seriously studying chemistry. The box and the back of the board have some damage and stains. We appreciate your understanding. The cards are clean and all present.