Chapter 8.1 Guided Reading

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Across
  1. 1. A common rock found in oceanic crust
  2. 7. The type of crust under land, usually made of granite and less dense
  3. 9. The thickest layer of Earth located between the crust and core
  4. 11. A common rock found in continental crust
  5. 13. The thin outer layer of Earth where we live
  6. 15. The idea that natural processes have always worked the same way and speed
  7. 18. The rigid outer layer made of the crust and upper mantle
  8. 20. The soft, slowly flowing layer beneath the lithosphere
Down
  1. 2. The view that most geologic features formed thousands, not millions, of years ago
  2. 3. The liquid layer of the core that helps create Earth’s magnetic field
  3. 4. Information from earthquake waves used to study Earth’s interior
  4. 5. The thinner, denser crust under the ocean floor made mostly of basalt
  5. 6. The solid center of Earth caused by extreme pressure
  6. 8. A modern view that combines steady processes with major disasters
  7. 10. Sudden violent events like floods, volcanoes, and earthquakes
  8. 12. The amount of mass in a given volume of material
  9. 14. The idea that geologic change can happen quickly from major events
  10. 16. The invisible force around Earth created by the spinning liquid outer core
  11. 17. The innermost layer of Earth made mostly of iron and nickel
  12. 19. A green mineral commonly found in mantle rocks