Across
- 2. Invention that changed the way people travel long distances
- 5. First invention used for communication over long distances
- 7. Device invented by Johannes Gutenberg that revolutionized printing
- 8. Device invented by Alexander Graham Bell
Down
- 1. Inventor of the theory of relativity
- 2. The process of making an exact copy of a document or object
- 3. The first name of the inventor of the polio vaccine
- 4. First name of the inventor of the light bulb
- 6. Inventor of the telephone