Across
- 6. random, unreliable, uncertain
- 7. an early city that was like a small, independent country with its own laws and government
- 8. a wall of earth built to prevent a river from flooding over its banks
- 11. system a means of supplying areas of land with water by using levees, canals and dams
- 13. one of the two largest rivers in Southwest Asia that flow from the mountains in Turkey to the Persian Gulf that is on the east side of Mesopotamia
- 14. a structure built across a river to control the river’s flow
- 15. fine particles of rock that could clog irrigation canals
- 17. Crescent an arc-shaped area in southwest Asia, with rich soil, currently referred to as the Middle East
Down
- 1. Deserts two large deserts that border Mesopotamia to the west/south (towards Egypt)
- 2. man-made waterway used for irrigation and transportation
- 3. Mountains a mountain range north of Mesopotamia where both the Tigris and Euphrates Rivers begin
- 4. the study of how humans interact with their environment
- 5. in ancient times, the geographic area located between the Tigris and Euphrates Rivers
- 9. all of the physical surroundings in a place, including land, water, animals, plants and climate
- 10. one of the two largest rivers in Southwest Asia that flow from the mountains in Turkey to the Persian Gulf that is on the west side of Mesopotamia
- 12. barrier geographic features of an environment / landscape that make crossing land difficult
- 16. an area in southern Mesopotamia, where cities first appeared