| A | B |
| Astronomy | The study of objects and matter outside the earth's atmosphere. |
| Bureaucracy | The officails who help administer government. |
| Domesticate | Make tame such as training oxen to pull plows. |
| Hieroglyphics | A picture writing system developed by the ancient Egyptians. |
| Homo Sapiens | Scientific classification of humans. |
| Irrigation | A system of human-made ditches that carry water. |
| Loess | Fertile silt; a rich deposit of sediment or soil (as by a river). |
| Mummy | A body treated for burial with preservatives in the manner of the ancient Egytians. |
| Neolithic Revolution | A process that took place about 10,000 years ago in which groups of humans settled in one place as farmers. |
| Pharaohs | Rulers in Egypt between 3,000 B.C.E. and 945 B.C.E.; they were believed to be Gods as well as kings. |
| Polytheistic | Worshiping many Gods. |
| Pyramid | Magnificent ancient Egyptian tombs. |