vocab

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Across
  1. 8. The process in which one tectonic plate sinks beneath another.
  2. 9. A chart showing rock layers arranged from oldest to youngest.
  3. 10. Molten rock beneath Earth’s surface.
  4. 11. The theory that tectonic plates moved rapidly during a major catastrophic event.
  5. 12. The theory that continents were once joined together and later moved apart.
  6. 14. The idea that the solar system formed from a cloud of gas and dust.
Down
  1. 1. The rule that in undisturbed rock layers, the oldest layer is on the bottom.
  2. 2. A large section of Earth’s lithosphere that moves slowly over the mantle.
  3. 3. The process by which new ocean crust forms at mid-ocean ridges.
  4. 4. A layer of rock formed during the same time period.
  5. 5. Relating to a great flood.
  6. 6. A single large landmass made of most or all continents joined together.
  7. 7. The ancient supercontinent where all continents were once joined together.
  8. 13. The study of the movement and structure of Earth’s crust.