Crossword puzzle

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Across
  1. 1. :writing tool.
  2. 5. :Ice age animals were in danger of ___.
  3. 6. :tool were strong and more durable.
  4. 8. :Artistic Expression in the _______ age.
  5. 12. water from one place to another.
  6. 14. :a place were they worship to god.
  7. 17. :how did people survived ?
  8. 18. :drier land let people plant seeds..___.
  9. 19. :extra food is called _______.
  10. 20. :you can't give money to trade.
Down
  1. 1. :located in Mesopotamia / modern Iraq
  2. 2. :experts on one job
  3. 3. :some one who keeps records
  4. 4. :what is moving from place to place ?
  5. 7. : ____ animals are good for traveling from one place to another
  6. 9. :in modern days Sumer is located at _____.
  7. 10. : Sumerians professional record keepers invented _______.
  8. 11. :upper, middle, and lower _____.
  9. 13. :_____ river is located at southern Iraq
  10. 15. and burn :what is it called when they clear the field.
  11. 16. :During the ___temperature were warmer