Across
- 2. the time before there was writing
- 5. a relative who lived in the past
- 7. huge stones monuments
- 9. the middle part of the Stone age;marked by the creation of smaller and more complex tools
- 11. to move to a new place
- 12. a strip of land connecting two continents
Down
- 1. the process of changing plants or animals to make them more useful to humans
- 3. people who hunt animals and gather wild plants,seeds,fruits,and nuts to survive
- 4. long period of freezing weather
- 6. the first part of the Stone age; when people first used Stone tools
- 8. an early ancestor of humans
- 10. the New Stone Age; when people learned to make fire and tools such as saws and drills
