| A | B |
|---|
| papyrus | a paper like material made from a reed |
| pyramid | a structure with four triangular sides that rise from a rectangular or square base to meet at a point on the top |
| pharaoh | a king of ancient Egypt |
| hieroglyphics | a writing system in which pictures are used to represent words and sounds |
| desertification | any change of fertile land into desert, whether caused by climate or human actions |
| delta | a huge, triangle-shaped area made up of marshes and islands near the mouth of a river |
| silt | fine bits of rock and soil left behind after a river floods its banks |
| predict | to tell what is going to happen ahead of time |
| cataract | a waterfall or a place where water runs fast over rocks |
