Ruby's Rome crossword puzzle

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Across
  1. 3. small pieces of glass or rocks put together to make a pic
  2. 5. greatest field for chariot races
  3. 6. art of talking in public-persuasive speaking.
  4. 8. a rich Roman city house
  5. 9. type of paper made from animal skin
  6. 10. first emperor of Rome
  7. 12. the Roman marketplace
Down
  1. 1. pool to collect rainwater in house
  2. 2. garden in the back of the house
  3. 4. carries water to city
  4. 7. founder of Rome
  5. 10. tool with sliding beads to count
  6. 11. area in center of circus used to keep track of lap