More of a mini-unit than a lesson, these activities lead inquisitors through a survey of oil deposits. In the first part, they read about and view diagrams of sedimentary rock layers that trap oil. Next, they test porosity and permeability of different sediments. In part three, they consider the need for geologists to use topographic maps. The fourth part can only be used if your school has a data analysis system that you can access for relevant data. These are top-notch activities that can be used individually, together, or in addition to "Fossil Fuels (Part I)," also available via the Lesson Planet website.