Across
- 4. A kind of idea that has never been thought of before.
- 6. Can fit in small spaces.
- 7. America's greatest Inventor.
- 9. The first device to record sound and play back.
- 10. Edison's most popular and important invention.
Down
- 1. Set of things or ideas that work together to get something done.
- 2. The first motion picture camera.
- 3. It is special enough to remember.
- 5. A person who has new ideas about life in the future.
- 8. Recordings of one song.