This study guide covers rocks, minerals, and geological processes. It defines minerals and their five properties - luster, streak, cleavage, hardness. It describes the three types of rocks - igneous, sedimentary, and metamorphic - and how each forms. It also defines related terms like magma, lava, sediment, weathering, erosion, renewable and nonrenewable resources, and conservation. The guide provides information on renewable energy resources that can replace fossil fuels.