The document presents a quiz about earth science concepts including the composition of the earth's layers, properties of rocks and minerals, weathering and erosion processes, and crystal structures. Players are asked multiple choice questions testing their knowledge of topics such as the makeup of the mantle, thickness of earth's layers, effects of freezing water, and how rocks are grouped. There are over 20 questions presented in a quiz-like format with multiple choice answers to test the player's understanding of basic earth science topics.