| A | B |
|---|
| Anthropologists | study the physical and cultural development of humans |
| Tanzania | area in Africa where a series of valleys cut through the plains |
| Great Rift Valley | Artifact site in Tanzania |
| Paleolithic | a period of time when people used simple stone tools |
| Era | a significant period of time |
| Blombos Cave | Cave in South Africa where blades carved from animal bones were found. |
| Border Cave | An ancient cave located on a high cliff so hunters could watch for animals movement below. |
| Hunters-gatherers | met needs by hunting animals and gathering plants. |
| Border cave people | cared for their young. |
| Distortion | errors that make a map less accurate. |
| projection | a way of showing parts of Earth on a flat map. |
| Equal Area Projection | a map that distors the shape of land in order to show the whole picture. |
| Mercator Projection | objects near the equator have little distortion, objects far great distortion. |
| Polar Projections | Used to show the area around the North or South Pole. |
| Technology | the use of tools, skills, machines to meet practical human needs. |
| Flaking | chipping pieces off the edge of an object |
| hand axe | one of the first tools used by early people |
