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