Ancient China

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Across
  1. 6. A large stone structure that stretches 7300km across China (two words)
  2. 7. The name of the first noteworthy dynasty in China
Down
  1. 1. The longest river in Asia
  2. 2. A period of time where the leaders of a place all come from the same family
  3. 3. The first emperor of China (three words)
  4. 4. A device that helped people navigate land and sea
  5. 5. A fine thread created from caterpillar cocoons
  6. 6. An explosive powder