This simple memory game is a fun way to introduce children (and adults!) to the chemical elements in the world that surround them. Players lay out cards face down in a 6x6 grid. They then take turns flipping over cards to make matches between the element's symbol/name and where it is found in the world (i.e., helium with party balloons, silicon with sand). The winner is the person with the most matches! —description from the publisher