Across
- 2. people who move around a lot looking for food
- 7. knowledge, beliefs, and customs of a group of people
- 8. a product or service is exchanged for another product or service
- 10. Old Stone Age
- 11. before the year zero
- 12. a complex society
- 13. after the year zero
Down
- 1. farming method when fields are cleared and burned
- 3. taming animals for human use
- 4. spreading of one culture to another
- 5. someone who stays in one place
- 6. people hunted animals and gathered plants
- 9. the time when people began to plant crops