Active planets

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Across
  1. 2. molten mixture of rock
  2. 7. vibrations after an earthquake
  3. 8. bowl-shaped area, central opening of a volcano
  4. 9. major belt of volcanoes (4,2,4)
  5. 11. shaking or vibrations at the surface of the earth’s crust
Down
  1. 1. relative importance or size
  2. 3. volcanic clouds that can disrupts flights
  3. 4. cone shaped mountain often made of lava and ash
  4. 5. formed by the solidification of molten magma(7,4)
  5. 6. plate which is less denser than oceanic crust
  6. 10. point where the earthquake is the strongest