Discovery!

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Across
  1. 3. Comes from a volcano.
  2. 5. To look at closely.
  3. 6. A hobby or activity.
  4. 7. A kind of rock.
  5. 8. A kind of animal that is extinct.
  6. 9. To find.
Down
  1. 1. A valley in between two mountains.
  2. 2. A scientist who studies fossils.
  3. 4. One on top of the other.
  4. 5. To dig out.
  5. 10. Head bone.