Across
- 2. The process of using symbols
- 5. One of the two rivers
- 7. Known as the largest and powerful city
- 9. The land between the two rivers
- 10. An ancient word that means river
Down
- 1. One of the characteristics of a civilization
- 3. The first system to help grow crops
- 4. Known as the capital of the first civilization
- 6. The first civilization
- 8. The study of the origin of words