Across
- 2. to move to a new place
- 3. early ancestor of modern humans
- 7. stones used as monuments
- 9. changing plants and animals to make them more useful for humans
- 10. old stone age
- 13. bridge landmass connecting Asia and North America
- 14. new stone age
- 15. a community of people who share a common culture
- 16. periods of intense cold
Down
- 1. farming
- 4. ages
- 5. middle stone age
- 6. people who hunt animals and gather wild plants, seeds, fruits, and nuts
- 8. any handheld object that has been modified to help a person accomplish a task
- 11. a relative who lived in the past
- 12. time before there was writing