inventions change the world

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Across
  1. 1. comunity has invented wheel has been very important in the world
  2. 3. has invented calculator
  3. 4. television was very important because with the television people are entertained
  4. 7. has invented the airplane
  5. 8. has invented antibiotic or medicine has served to save the world for many years
  6. 9. engine was used to create the train
Down
  1. 2. Bell has invented phone first that existed but before it had another name
  2. 5. powder has been used for ancient weapons
  3. 6. has invented printing press was the first printer