Geo Time puzzle

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Across
  1. 2. backbone
  2. 5. layer of rock is younger than the layer below & older than the layer above it
  3. 6. fossils used by scientists to determine the age of rock layers
  4. 11. study of strata to find history of land
  5. 12. finding out if one rock is older than the other
  6. 13. measuring physical properties of an object itself
  7. 14. Funny "HAHAHA"
Down
  1. 1. age of rock/layer
  2. 3. numerical age of rock/layer
  3. 4. rocks made of loose eroded particles that harden overtime
  4. 7. layers of rock
  5. 8. bone under radius
  6. 9. impressions of organisms that lived a long time ago
  7. 10. "Wiggle your ___"
  8. 11. broken down rock that are moved from places & deposited in another