Discovery

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Across
  1. 3. consists of unearthing remains of the past
  2. 5. transformation into stone or the hardening of a thing
Down
  1. 1. objects made of clay and then baked until hard.
  2. 2. an object that was made a long time ago by humans
  3. 4. remains of an organism that is petrified and found in the earth's layers