| A | B |
|---|
| atmosphere | gases around the earth |
| biosphere | zone of life around the earth |
| geography | study of earth and living things |
| themematic map | map dealing with one subject |
| reference map | map showing roads, cities, states |
| Homo sapeins | human beings |
| DNA | genetic code of life |
| radiocarbon dating | a way of determining age of an object |
| artifacts | man made objects |
| fossils | objects that were once living |
| excavation | to dig up |
| site grid | stakes and string dividing an excavation |
| technology | level of knowledge |
| anthropologist | a person who studies societies |
| archaeologist | person who studies the past |
| migrate | to move from place to place |
| Beringia | ancient land bridge |
