| A | B |
|---|
| Sahara | large desert in North Africa that is the size of the U.S. |
| Sahel | southern edge of the expanding Sahara |
| Kalahari | large desert in the south of Africa |
| savanna | grassland; covers 40% of Africa |
| animism | religion in which spirits play important role |
| griot | storyteller who shares orally the history, literature and culture |
| Nok | West Africa's earliest known culture |
| Djenné-Djeno | Africa's oldest known city, 250 B.C. |
| rain forest | environment in Central Africa, tall trees block sunlight |
| iron production | major technological achievement of Nok people |
| pastoral herders or pastoralists | nomads who keep cattle, sheep or goats |
