Across
- 6. Before written history
- 9. Farming crops and raising animals
- 10. Someone who moves from place to place
- 11. New Stone Age
Down
- 1. Old Stone Age
- 2. Early humans
- 3. Training wild animals to be useful to humans
- 4. A skill, such as walking or using thumbs
- 5. To move
- 7. Exchange of goods and services
- 8. Something that can be used to fulfill a need