rock cycle what we have learned

1234567891011121314151617181920
Across
  1. 6. under the earth surface
  2. 7. cycle of rocks
  3. 9. measure hardness of a mineral
  4. 12. study of the earth
  5. 13. australia has the most of that gemstone
  6. 15. mostly dark and gray colour
  7. 16. lightest mineral on the mohs scale
  8. 18. a common metamorphic rock
  9. 20. are grey in colour due to weathering and erosion
Down
  1. 1. changes from magma
  2. 2. mostly used for jewelry
  3. 3. made out of sediments
  4. 4. are made up of calcium carbonate
  5. 5. hardest on the mohs scale
  6. 8. solid material that settles at the bottom of a liquid
  7. 10. a common igneous rock
  8. 11. are mostly black due to the magma
  9. 14. mistake for gold
  10. 17. a common sedimentary rock
  11. 19. one component of the earth crust