Power Point slides on Rock Layers & what they can tell us about fossils and their relative age. The slides were used in the classroom alongside the Generation Genius video on Rock Layers & Geologic Time. Included in the slides: - Definitions of the words fossil, weathering, erosion, geologic time scale, sedimentary rocks, deposition, intrusion, relative & absolute dating, and the law of superposition. - Discussion questions on the topics of: What scientists can discover using rock la