Across
- 6. are located right in the middle of North America
- 9. a large area that is lower in the center and higher at the outer edges (like a bowl)
- 10. a time before writing
- 11. the weather in a place for a long time
- 12. the artificial watering of crops and land using
- 13. home used by American Indians on the Great Plains
- 14. when a place is extremely dry
- 16. region i8n the Great Plains that has strange rock formations shaped by erosion
- 17. and pipes
Down
- 1. climate that is not too hold or cold, and has four seasons
- 2. flat land found along the edges of oceans or seas
- 3. a hot, dry place
- 4. people who came to America to spread Christianity
- 5. large, flat, grassy area with very few trees
- 6. large mass of ice slowly moving over land
- 7. big, dangerous animal that lives in swamps of the southeast
- 8. climate with hot, wet summers and mild winters
- 15. flat area of high elevation