CHINESE CIVILISATION

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Across
  1. 5. Written with Chinese ____________.
  2. 6. Many kingdoms form an __________.
  3. 7. Invented for fireworks
Down
  1. 1. Made up of villages and cities
  2. 2. Ruled by many emperors over a time period
  3. 3. A type of Chinese pottery.
  4. 4. An expensive material made from worms.