Plate Tectonics

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Across
  1. 4. The place where one plate is getting bent and pulled under the edge of another plate
  2. 5. Raised area or mountain range under the oceans
  3. 9. Process that forms new ocean floor and oceanic crust
  4. 11. Several large slabs of the lithosphere
  5. 13. Hard and rigid, the earth's outermost and thinnest layer
  6. 14. Two plates slide against each other
  7. 17. A German scientist
  8. 18. Trench long, narrow, deep area on the ocean floor that is formed at a convergent plate boundary
  9. 20. A convergent plate boundary where continents are colliding together and creating mountains.
Down
  1. 1. Solid outer part of Earth
  2. 2. Also known as spreading boundary
  3. 3. Occurs where two land masses on plates are pushed together
  4. 6. Trembling and shaking of the earth's surface
  5. 7. Two tectonic plates grind past each other in a horizontal direction
  6. 8. Very hot rock rises from the mantle and erupts through Earth’s crust
  7. 10. Layer of solid and melted rock
  8. 12. Huge ocean wave caused by a sudden, powerful shift on the ocean floor
  9. 15. Dropped zone where two tectonic plates are pulling apart
  10. 16. Existed more than 225 million years ago
  11. 19. A string of volcanoes and earthquakes