Transportation Puzzle

3. A person having expert knowledge of 
    one or more sciences
5. to make dirty
8. a device of the future that hovers in the air
9. To hang so as to allow free movement
10. relating to, or operated by electricity

1. made or produced
2. the rapidity of motion
4. a person who is involved with industrialism
6. conditions that surround one
7. A single rail, serving as a track for 
    passenger or vehicles