| A | B |
| history | the study of the past |
| culture | the knowledge, beliefs, customs and values of a group of people |
| archaeology | the study of the past based on what people left behind |
| archaeologist | a person who explores places where people once lived, worked, or fought and examines the objects they find to learn about the past |
| fossil | a part or imprint of something that was once alive |
| artifacts | objects created by and used by humans |
| primary source | an historical document, artifact, or an account of an event created by someone who took part in or witnessed the event |
| secondary source | information gathered by someone who did not take part in or witness an event |
| prehistory | the time before there was writing |
| Mary Leakey | paleoanthropologist who found fossils from some of the earliest ancestors of humans in Africa |
| hominid | an early ancestor of humans (walked upright on two feet) |
| ancestor | a relative who lived in the past |
| Don Johanson | paleoanthropologist who discovered the bones of "Lucy," an early hominid that lived more than 3 million years ago |
| Paleoanthropologist | a person who studies hominid fossils |
| tool | any hand-held object that has been modified to help a person accomplish a task |
| Paleolithic Era | the first part of the Stone Age (Old Stone Age) |
| society | a community of people who share a common culture |
| hunter-gatherers | people who hunt animals and gather wild plants, seeds, fruits and nuts to survive |