Earth+History+Booklet+B

__2011__ __Earth History Booklet__ Use the textbook page numbers as your guide. 1. Rock Types (269) a) Explain how igneous rocks form. b) Explain how sedimentary rocks form. c) Explain how metamorphic rocks form. 2. Rock Cycle (270 & 271) a) Draw a rock cycle diagram. b) Explain how volcanic activity can produce two kinds of igneous rock. c) Explain how igneous and metamorphic rock can be changed into sedimentary rock. d) Explain how the deposition of sediment can form sedimentary rock. e) Explain how heat and pressure can change igneous and sedimentary rocks into metamorphic rocks. f) Explain how igneous, sedimentary, and metamorphic rocks can become new igneous rocks. 3. Relative Rock Age (272 & 273) a) Explain the difference between the relative and absolute ages of rocks. b) Explain the law of superposition. c) Show relative age, absolute age, and the law of superposition in a diagram. d) Show a fault, igneous intrusion, and an unconformity in diagrams. (274&275) e) Explain how unconformities occur. 4. Index fossils (276 & 277) a) Draw the two pictures on page 278 b) Explain the answers to the Analyze and Conclude part, numbers 1 to 8. 5. Radioactive Dating (280 – 282) a) Define radioactive decay. b) Tell what happens during radioactive decay. c) Tell what a half-life is. d) Tell what is inferred from moon rocks. e) Draw a picture explaining half-life and radioactive dating. 6. Movement of Earth’s Plates (283-285) a) Explain the theory of plate tectonics. b) Explain continental drift. c) Explain how the climate of a plate could slowly change due to its movement. d) Explain how the distribution of organisms could be affected by plate tectonics. e) Assemble Pangaea. Write the names of the present continents on or near their locations on Pangaea. 7. Geologic Time Scale (286) a) Tell what the geologic time scale is. b) Briefly explain the three Eras using the prefixes ceno, meso, and Paleo. c) Present one or two fact about each period. d) Explain something about how the first two eras ended. e) Draw a simplified geologic time scale.