Across
- 1. A building where people use machines to produce goods
- 3. This man invented the steam engine
- 6. A track made of steel rails along which trains run
- 7. Full of people
Down
- 1. Area of land that is used for growing crops and keeping animals
- 2. An engine that uses steam to produce power
- 4. A very poor and crowded area of the city
- 5. Money earned by an employee