Transport through time

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Across
  1. 2. The first aircraft that could move in any direction.
  2. 4. It transport products that need to be kept cold._______________
  3. 6. These are traditional Arabian sailing ships.
  4. 9. It is the fastest, but most expensive form of transportation. _______________
  5. 12. These ships are built of iron and steel.
  6. 13. It protects the earth from the sun's harmful rays. _______________
  7. 14. He built the first car factory.
  8. 15. This bike had one big wheel and one small wheel. ________________
  9. 16. The first bicycle that women could also ride comfortably was the ________________.
Down
  1. 1. These are old Chinese sailing ships.
  2. 3. the first flying machine that could transport people.
  3. 5. The invention of the ________ made it much easier to transport people and goods.
  4. 7. Karl Benz built the first __________.
  5. 8. Freight trains do not transport people, but they transport __________.
  6. 9. The name of the first aircraft.
  7. 10. This is the biggest problem caused by cars.
  8. 11. Pirates liked many of these ships.