Science

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Across
  1. 3. architectural design that supported more weight than just arch and beam
  2. 4. the century that concrete was developed in
  3. 6. used to make medicine
  4. 7. the doctors treated these people free of charge
  5. 9. created to aid water flow
Down
  1. 1. used to make mortar
  2. 2. made by laying gravel with rock slabs on top
  3. 4. contained medical writings
  4. 5. the romans became successful _____ due to their knowledge of soil and climate
  5. 8. had personal doctors to take care of them