Olmec civilization cross word puzzle

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Across
  1. 5. name of our civilization
  2. 9. way of farming in olmec
Down
  1. 1. one of the use of stone
  2. 2. the material to make the rubber ball
  3. 3. the one that is getting eaten by the olmecs
  4. 4. the chocolate usage in olmec
  5. 6. one of the food in olmec
  6. 7. mesoamerican black rock that is from volcanic eruption
  7. 8. olmec ball game name