Across
- 1. A glass object that uses electricity to glow and give off light.
- 3. The sound that comes out of your mouth when you speak or sing.
- 7. Edison’s first machine that could record and play back sound.
- 9. A tiny, sharp tool used to press sound into a cylinder.
- 10. Tests or trials that scientists do to see if an idea works.
Down
- 2. A person who creates or makes a new thing for the first time.
- 4. To take something that already exists and make it better.
- 5. A device used to send the sound of a human voice over wires.
- 6. Long, thin metal strings that carry electricity or sound.
- 7. Official papers that say an inventor is the only one allowed to sell their invention.
- 8. Wanting to know "why" or learn more about how things work.