divergent spilts apart

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Across
  1. 2. the exact age of a rock
  2. 4. rocks age compared with another rock
  3. 7. the things that cut through other things are younger than the things around it
  4. 8. old bones or rocks
  5. 9. the inside is older than the things on the outside
Down
  1. 1. before writing (long time ago)
  2. 3. way to find the age of a rock
  3. 5. Decay
  4. 6. way to describe and categorize ancient time
  5. 10. rocks on top are old than the bottom