Across
- 2. Old Stone Age
- 4. early ancestor of modern-day humans
- 6. a relative who lived in the past
- 7. huge stone used as monuments or as the sites for religious gatherings
- 11. time before writing
- 12. ages freezing times
- 13. any handheld object that has been modified to help a person accomplish a task
- 14. people who hunt animals and gather wild plants, seeds, fruits, and nuts to survive
- 15. to move to a new place
Down
- 1. New Stone Age
- 3. bridge a strip of land connecting two continents
- 5. Middle Stone Age
- 8. farming
- 9. process of changing plants or animals to make them more useful to humans
- 10. a community of people who share a common culture