Chinese Inventions

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Across
  1. 3. Before paper, people wrote on it
  2. 4. The city where Marco Polo lived
  3. 6. A device that helps travellers to find there way
  4. 7. Chinese printing blocks were...
Down
  1. 1. The trade route from Europe to Asia
  2. 2. The famous Italian traveller who went to China
  3. 5. We write and print on it