Across
- 2. a story of a person's life
- 3. very smart
- 6. important discovery after many tries
- 9. write down spoken words
- 10. text feature on page 215
- 12. something useful or helpful
- 14. last name of the light bulb inventor
- 15. text feature on page 199
Down
- 1. Edison's most popular invention
- 4. something created
- 5. a new idea
- 7. text feature on page 191
- 8. text feature on page 216
- 11. a way to find unseen objects using radio waves
- 13. a tool that has a certain purpose