Across
- 4. people who hunt and gather plant, seeds, and animals
- 6. the middle part of the stone age
- 8. the time before writing
- 9. the first part of the stone age where people learn how to make fires and drills
- 11. a early ancestor of humans
- 12. the new stone age
Down
- 1. a long stripe of land
- 2. to move to a different place
- 3. a relative who lived in the past
- 5. the process of making plant and animals more useful to humans
- 7. huge stone monuments
- 10. long periods of freezing weather
