Famous Inventions A

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Across
  1. 2. It allows people to experience virtual worlds.
  2. 3. Use this to find your direction.
  3. 4. This kills and prevents the growth of harmful bacteria
  4. 7. It is used in guns and fireworks.
  5. 9. A fundamental piece of the circuitry in televisions, cellphones, and computers.
  6. 10. It is used to look at things far away.
Down
  1. 1. This enables us to see inside the human body.
  2. 5. This is used in houses at night.
  3. 6. These machine do repetitive, and sometimes dangerous tasks.
  4. 8. This is used for space travel.