| A | B |
|---|
| prehistory | The time before there was writing |
| hominid | An early ancestor of humans |
| ancestor | A relative who lived in the past |
| tool | Any hand held object that has been modified to help a person accomplish a task |
| paleolithic | The first part of the Stone Age; when people used stone tools |
| society | A community of people who share a common culture |
| hunter-gatherers | People who hunt animals and gather wild plants, fruits, and nuts to survive |
| migrate | To move to a new place |
| ice ages | Long periods of freezing weather |
| land bridge | A strip of land connecting two continents |
| Mesolithic Era | The middle part of the Stone Age; marked by the creation of smaller and more complex tools |
| Neolithic Era | The New Stone Age; when people learned to make fire and tools such as saws and drills |
| domestication | The process of changing plants or animals to make them more useful to humans |
| agriculture | farming |
| megoliths | Huge stones used as monuments |
