Roman inventions Szilágyi Dávid

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Across
  1. 3. A wall built across a river that stops the river's flow.
  2. 4. An underground passage.
  3. 5. A building material made by mixing together cement, sand, small stones, and water.
  4. 9. An ancient book that was written by hand.
  5. 10. A bluish-grey metal that is a mixture of tin and lead.
  6. 12. A substance used for washing your hands.
  7. 13. A piece of equipment used to measure the density of liquids.
  8. 15. A large farming tool with blades that digs the soil in fields.
Down
  1. 1. A tall building near the coast or shore with a flashing light at the top.
  2. 2. A bright yellow metal made from copper and zinc.
  3. 6. A machine that cuts and collects crops.
  4. 7. A path that goes along the side of a river or canal.
  5. 8. The activity or skill of making clay objects by hand.
  6. 11. A rounded roof on a building or a room.
  7. 14. A building where grain is crushed into flour.