UNIT 3- Navigating a concrete world

123456789101112131415161718
Across
  1. 3. An underground train system
  2. 5. A path beside the road for walking
  3. 6. A part of a city formed mainly by buildings for people to live
  4. 7. A place where people wait for buses or trains
  5. 8. A public open area in a city, often with buildings around
  6. 11. A place where cars and vehicles travel
  7. 12. The presence of contaminants in the environment
  8. 13. A wide road for fast travel between places
  9. 14. A place where sick people go to be cured
  10. 16. Small hard blocks used to build walls
  11. 17. A hard building material made from cement
  12. 18. A clear material used for windows
Down
  1. 1. The first floor at street level
  2. 2. An area of the city composed of several buildings near each other
  3. 4. Signals that control when cars and pedestriansstop and go
  4. 8. A very tall building
  5. 9. A group of people that run a city
  6. 10. A part of the road for bicycles
  7. 12. A person who is walking
  8. 15. A green area with trees and benches