Timeless Thomas

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