Volcanoes

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Across
  1. 2. forms in the crust and upper mantle when solid rock partially melts
  2. 3. formation of magma depends on water content, heat, and what?
  3. 6. volcanic activity that occurs within a plate
  4. 8. plates pull apart at this boundary
  5. 9. magma contains three things: dissolved gases, water, and what?
  6. 10. the long belt of volcanoes that circles the Pacific Ocean
Down
  1. 1. melting process that takes place as hot yet solid mantle rock rises because it is less dense than the surrounding rock
  2. 4. small volcanic region a few hundred kilometers across
  3. 5. this lowers the rock's melting temperature
  4. 7. this is where divergent boundaries are found