Ancient life science ch 5

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Across
  1. 7. using a radioactive process to determine age
  2. 8. objects made by humans
  3. 9. age of an artifact by printed date or reference
  4. 10. counting tree rings to determine tree age
  5. 12. the benefit of the doubt is to be given to the document itself
Down
  1. 1. calculated âge of an artifact from a dating method
  2. 2. documents which support the validity of a document of interest
  3. 3. study of past human life by relics
  4. 4. layers in rock formations
  5. 5. study of earths history in plant and animal remains
  6. 6. all scientific pursuits related to living organisms
  7. 11. study of earths history in rocks