Roman inventions senyviczky károly

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Across
  1. 3. underground or undersea passageway
  2. 5. building material, hardened cement
  3. 6. a structure that carries a road,path,railway,etc. across a river
  4. 9. a tower or other structure containing a beacon light to guide or warn ships on sea
Down
  1. 1. a material made from animal skin
  2. 2. rod connection between the piston and a crankshaft
  3. 4. veener thin slices of natural wood
  4. 7. a machine that harvests a crop
  5. 8. calcining lime and clay, mixed with water
  6. 10. a path that goes alongside a river or canal4