Across
- 5. would hunt their own game to eat
- 6. bringing water to dry fields
- 7. to travel from one area to another
- 10. the land bridge formed from Asia to here
- 12. a set of beliefs and way of life for a group of people
- 13. Americans migrated from here
Down
- 1. caused the level of the ocean water to decrease
- 2. an idea that explains something
- 3. a narrow channel of water connecting two bodies of land
- 4. the name of the strait that the nomads crossed
- 8. growing your food, farming
- 9. a strip of land that connects two landmasses
- 10. people who travel from place to place
- 11. lower temperatures caused large areas on Earth to freeze