ROCKS AND MINERALS

123456789101112131415161718
Across
  1. 3. A fossil fuel.
  2. 8. A soft stone.
  3. 11. Attracts iron
  4. 13. A frothy stone.
  5. 14. _______is rich in aluminium.
  6. 15. The earth core is made of ______rock.
  7. 17. __is used to make building materias.
  8. 18. Sulphates and nitrates are examples of __.
Down
  1. 1. All rocks are made up of _________.
  2. 2. ________ is formed from sand stone.
  3. 4. It has rounded stones.
  4. 5. ________ is formed from granite.
  5. 6. Formed by the slow cooling of lava.
  6. 7. _______ is used to make cement.
  7. 9. An example for a gemstone.
  8. 10. A smooth and glassy rock.
  9. 12. Made of solidified clay.
  10. 15. _______ is used for making statues.
  11. 16. can be split into flat layers.