Rocks

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Across
  1. 4. A very large igneous intrusion
  2. 6. Internal heat from earth
  3. 9. The process of rotting
  4. 10. The action of forming
Down
  1. 1. Something you cant do
  2. 2. System of rocks
  3. 3. reaction A process that involves rearrangement
  4. 5. A small earthquake
  5. 7. Fill with cavities or tunnels
  6. 8. An unfamiliar area