Across
- 3. African-American scientist who promoted crop diversification
- 5. Inventor who developed alternating current electricity
- 6. Machine used by newspapers to set type efficiently
- 7. Company that made portable cameras widely available
- 10. African-American inventor who improved carbon filaments for lamps
- 11. Early communitcation system using Morse code signals
- 14. Edison’s invention that brought electric light to homes.
- 15. Event in 1876 where Bell demonstrated the telephone.
- 18. Device used to transmit voices over wires
- 19. Bell’s company that operated long-distance telephone lines.
- 20. Inventor known as the “Wizard of Menlo Park.”
Down
- 1. Edison’s invention that played recorded sound.
- 2. Scottish inventor of the first practical telephone
- 4. Electric power system that can travel long distances.
- 8. Crop made profitable through Carver’s inventions
- 9. Industrialist who promoted Tesla’s alternating current.
- 12. Edison's invention that launched the silent-film industry.
- 13. Legal right to make or sell an invention.
- 16. Location of Edison’s first research laboratory
- 17. Machine used for typing letters quickly