Civil Engineering

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Across
  1. 2. A big flat pancake of concrete for your floor
  2. 4. A rainbow shaped opening in a wall or bridge
  3. 8. A metal screw that holds two pieces tight together
  4. 9. A vertical surface that splits a room in two
  5. 10. The hat of a building that keeps rain out
  6. 11. One flat piece of a staircase you walk up
  7. 12. Melting metal to stick two pieces together
  8. 13. A slanted surface skateboarders love to use
Down
  1. 1. A pointy metal pin you hammer into wood
  2. 2. The piece of land where construction happens
  3. 3. A long bar that holds the floor above you up
  4. 5. The small wall at the edge of a sidewalk
  5. 6. The weight a structure has to hold up
  6. 7. A swinging panel you push to walk inside
  7. 11. How far a bridge stretches from one side to the other