Across
- 2. A strong, flexible metal made by removing carbon from iron.
- 5. Location of the famous steel-structured bridge completed in 1883.
- 9. Alexander Graham Bell’s invention that revolutionized communication.
- 10. A term that includes inventions and new ways of doing things.
Down
- 1. City where many automobile factories were located due to good resources and transport.
- 3. A metal used to create steel, found in large deposits in Minnesota.
- 4. A new source of energy that powered machines and changed daily life.
- 6. Originally a waste byproduct of oil refining; later vital for cars.
- 7. Christopher Sholes’s invention that changed office work.
- 8. A lamp fuel made from oil or coal, used widely in the 1800s.