45 cards list important concepts from Rocks & Minerals content, including physical properties of matter, rock types and examples, mineral properties and examples, methods for identifying rocks and minerals, and the rock cycle. The cards can be used in a game played against two teams of students or in other ways (as a dismissal game, etc.). When playing in teams of two, one student from a group comes to the front of the room and takes a card. The student tries to get his/her group to guess th