The Fossil Record

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Across
  1. 6. made of elements
  2. 7. fossil of sea animal
  3. 8. Large reptile that lived millions of years ago
  4. 9. proof something happened
  5. 10. remains of very old life
  6. 14. scientist that studies fossils
  7. 16. record of the past
Down
  1. 1. living thing that grows in dirt
  2. 2. rot over time
  3. 3. copy of a shape
  4. 4. mark made on hard surface
  5. 5. mark left by foot
  6. 7. hard tree sap
  7. 8. break down by nature
  8. 11. scientist that studies rocks
  9. 12. repeated shapes
  10. 13. Changed over time
  11. 15. sand that lays in layers