Plate Tectonics

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Across
  1. 2. major geological events the occur when plates shift suddenly and release stored energy
  2. 5. occurs when one is denser than another and is forced below as the two plates converge at their boundary
  3. 7. A vent or fissure in earth's surface through which magma and gases are expelled
  4. 9. occurs when two plates slide past each other
Down
  1. 1. the place where two different plates have
  2. 3. huge pieces of lithosphere that slowly move on the asthenosphere
  3. 4. occurs when two techonics move away from each other
  4. 6. the supercontinent that formed 300 million years ago and that began to break up 200 hundred million years ago
  5. 8. occurs when two tectonics plates move toward each other and collide