Tectonic Plates and Their Natural Wonders

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Across
  1. 2. A massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere
  2. 7. A super continent that existed during the late Paleozoic and early Mesozoic eras, it began to break apart about 175 million years ago
  3. 8. A solid mineral material forming part of the surface of the Earth
  4. 11. A piece of continental crust and a piece of oceanic crust collide
  5. 13. A boundary that occurs when two tectonic plates move together
  6. 14. Movement in the mantle that causes tectonic plates to move
  7. 15. How many layers of the Earth are there?
  8. 16. A break in the rocks that make up Earth's crust
  9. 19. The formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side
  10. 20. How many different convergent boundaries are there?
Down
  1. 1. Two pieces of oceanic crust collide
  2. 3. The sideways and downward movement of the edge of a plate of the Earth's crust into the mantle beneath another plate
  3. 4. Hanging wall rises relative to the footwall
  4. 5. A boundary that occurs when two tectonic plates slide past each other
  5. 6. A boundary that occurs when two tectonic plates move apart from each other
  6. 9. Two pieces of continental crust collide
  7. 10. The theory that proposed that the Earth had once been joined and over time drifted apart
  8. 12. Hanging wall moves down relative to the footwall
  9. 17. How many centimeters do tectonic plates move per year
  10. 18. A sudden and violent shaking of the ground, sometimes causing great destruction