| A | B |
| artifacts | objects made by people |
| culture | unique way of life for certain group of people |
| fossils | traces of ancient animal and plant life preserved in rock |
| carbon-14 dating | procedure to determine approximate age of once living material |
| nomads | people who wander rather than making permanent settlements |
| rituals | cermonies |
| glaciers | huge, slow moving sheets of ice |
| migrated | moved |
| domesticate | to tame |
| division of labor | specialization in particular skills |
| artisans | people with skills in specific crafts |
| barter | trade, in which one good is exchanged for another |
| excavate | to dig up |