Inventions

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Across
  1. 3. It is an object that serves to illuminate
  2. 4. a² + b² = c²
  3. 6. It is an object that serves to guide
  4. 7. E = mc²
  5. 9. It is a round object that vehicles have
Down
  1. 1. It is an object that is used to wash dishes
  2. 2. It is an object that is used to communicate
  3. 4. It is a vehicle with which you can fly
  4. 5. It is an object that is used for explosions
  5. 8. It is a water vehiclephone