Gabby Clement puzzle 3

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Across
  1. 2. the combined silica gibbsite later by oxygen links
  2. 4. consist of an oxygen atom and hydrogen atom
  3. 6. something that can be worked easily
  4. 8. made to assist clay particles to slide past one another
  5. 9. position themselves with their flat faces opposing pressure
  6. 12. removing air from clay
  7. 13. divides the clay grains to lubricate between particles
  8. 14. a slow spiral up a pot in a clockwise position
  9. 16. the commonest element in the earths crust and sea
  10. 17. made up of layers of silica and gibbsite
  11. 18. baked clay made from earthenware
  12. 19. during this stage water is released into steam
Down
  1. 1. can be used for buildings and walls
  2. 3. when the clay becomes loose due to applied stress
  3. 5. mixing clay with water in a circular motion
  4. 7. to improve workability of finished clay
  5. 9. the uncompressed one often tears apart
  6. 10. putting a diagonol pressure particles
  7. 11. the drying process occurs due to the loss of water layers
  8. 15. being able to easily shape and mold