front 1 geology | back 1 the study of Earth's formation and structure |
front 2 rock cycle | back 2 the process of rock formation and recycling |
front 3 superposition | back 3 the principle that states that in layers of sedimentary rocks the lowest layers were the earliest to be deposited |
front 4 relative dating | back 4 a method of sequencing events in the order in which they happened |
front 5 paleontologist | back 5 a scientist who studies fossils |
front 6 Pangaea | back 6 an ancient supercontinent that broke apart to form today's continents |
front 7 plate tectonics | back 7 a theory that describes how the continents move |
front 8 lithospheric plates | back 8 giant pieces of solid rock on Earth's surface |