Across
- 3. all graphs need one
- 5. when artifacts are found in rock or earth that is layered, the deeper layers hold the older artifacts
- 7. compares the document to other info within the same document
- 9. an age given using dendrochronology, radiometric dationg, or some other method. it is not definite
- 12. a critic looks at a base text and for corrections that may have been made to it in future copies
- 15. the result of pure science, applied science, or accident
- 16. determines time span between copies and number of copies
- 19. the age of an artifact as determined by a date printed on it or a reference to it in a work of history
- 20. the process of counting tree rings to determine the age of a tree
- 22. the ring in a tree that shows you the weather in an area over the year. a tree will have one dark ring and one light ring in a year
- 23. compares the document to other documents to other documents that already passed the 3 tests or known archaeological facts
- 24. a type of radiometric dating using the amount of carbon left in an object
- 25. the study of past human life as revealed by preserved relics
Down
- 1. objects made by people, such as tools, weapons, containers, etc.
- 2. testing documents to determine their accuracy
- 4. records that help us understand ancient civilizations. the 3 tests help us know their accuracy
- 6. using a radioacactive process to determine the age of an artifact
- 8. the systematic study of the natural world through observation and experimentation
- 10. motivated to use science to make something better
- 11. the study of earth's history as revealed in the rocks that make up the earth
- 13. a pattern that helps make dendrochronology more accurate
- 14. how to date an object
- 17. motivated by curiosity to understand
- 18. the study of life's history as revealed in the preserved remains of once-living organisms
- 21. a term that encompasses all scientific pursuits related to living organisms