Across
- 2. earliest period of history
- 5. our direct ancestors
- 8. determines the age of artifacts
- 11. a prehistoric monument
- 13. used to make jars to protect food
- 14. they were nomads during this time
- 16. an exciting period before history
Down
- 1. made to be used for a practical purpose
- 3. studies things people left behind
- 4. "upright man"
- 6. was used to keep people warm and to cook
- 7. tells us when things happened
- 9. studies the behavior of people
- 10. age where they had polished stone
- 12. had a large ridge of bone over their eye
- 15. helps us keep track of time