| A | B |
| Nile River Valley | The fertile region watered by the Nile River. The Nile River Valley was the source of Egyptian civilization, which developed along the river's banks. |
| Upper Egypt | The southern part of the kingdom of ancient Egypt. |
| Lower Egypt | The northern part of the kingdom of ancient Egypt. |
| delta | A triangle-shaped area of marshy land made by deposits of silt, sand, and small stones at the mouth of a river. |
| silt | Bits of black soil, sand, and clay laid down by flowing water. |
| irrigation | The watering of dry land by means of streams, canals, or pipes in order to grow more crops. |
| economy | The use of workers and resources to produce goods and services. |
| cataract | A waterfall or churning rapids in a river. |
| papyrus | A type of paper made from reeds and used by ancient Egyptians for writing and keeping records. |
| flax | fibers from plants used to weave cloth and mats |
| Nilometer | A measuring device used to help predict the height of the coming flood waters of the Nile. |
| inundation | flooding |
| shaduf | lever made from a pole on a pivot that allowed ancient Egyptian farmers to raise and lower a bucket to collect water. |