How do we know about the past?

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Across
  1. 3. Where the Egyptians buried Pharaohs
  2. 4. Tutankhamun was this
  3. 6. An animal that doesn't eat meat
  4. 7. The opposite of quiet
  5. 8. An animal or plant that no longer exists
  6. 9. You go up or down these
Down
  1. 1. Pirates steal or look for this in stories
  2. 2. An animal that eats meat
  3. 3. people who steal
  4. 5. A person who digs in the ground to find things from the past