Across
- 1. a huge stone monument
- 4. a relative who lived in the past
- 6. farming
- 7. the process of changing plants or animals to make them more useful to humans
- 9. Era the middle part of the stone age; marked by the creation of smaller and more complex tools
- 11. an early ancestor of humans
- 12. the time before there was writing
- 14. Ages long periods of freezing weather
- 15. an object that has been modified to help a person accomplish a task
Down
- 2. people who hunt animals and gather wild plants, seeds,fruits,and nuts to survive
- 3. to move to a new place
- 5. Era the first part of the Stone Age; when people first used stone tools
- 8. Era the New Stone Age'when people learned to make tools such as saws and drills
- 10. bridge a strip of land connecting two continents
- 13. a community of people who share a common culture
