Tectonic Plates

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Across
  1. 4. The continent once connected to Africa.
  2. 7. The thick layer below the crust.
  3. 8. Energy from Earth’s interior that drives mantle movement.
  4. 9. The center of Earth that provides heat.
  5. 10. The top layer of Earth.
  6. 12. These form on Earth’s surface because of plate movement.
  7. 15. Large pieces of the lithosphere.
Down
  1. 1. The solid layer below the lithosphere that flows slowly.
  2. 2. The crust and uppermost solid mantle together.
  3. 3. The supercontinent mentioned in the text.
  4. 5. One continent that separated from South America.
  5. 6. The rising and sinking movement in the mantle.
  6. 11. These shift positions over millions of years.
  7. 13. The part of Earth that changes over time due to plate movement.
  8. 14. These open over millions of years due to plate movement.