Tectonics

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Across
  1. 2. When the oceanic plate is forced under the less dense continental plate
  2. 5. The sections of crust
  3. 6. A volcano with gently sloping slides
  4. 8. The flow of superheated gases and tephra racing down the volcano side
Down
  1. 1. When two plates move apart
  2. 3. How thick and sticky lava flow is
  3. 4. When two plates grind past one another, pressure that has built up then is suddenly released.
  4. 7. semi-molten rock which is outside the crust
  5. 9. The movement of magma within the mantle due to its heating and cooling