| Term | Definition |
| artifact | human made objects |
| radiocarbon dating | way the experts judge the age of fossils it tells how much carbon remains in a once living person |
| consequence | effect |
| extinct | no longer living |
| migration | movement from one place to another |
| ice age | a long period of bitter cold |
| glacier | huge sheets of ice |
| tundra | large treeless plains found in artic regions |
| culture | a way of life |
| society | an organized group of people living and working under a set of rules and tradions |
| line of latitude | lines that run east and west of a globe, measure distances nor and south |
| parallel | lines of latitude |
| line of longitude | lines that run north and south of a globe, measures east and west |
| meridian | lines of longitude |
| prime meridian | the merdian that is marked up |
| domesticate | tame living things for human use |
| economy | the way people use resources to meet their needs |
| livestock | refers to domesicated plants and animals |
| nomads | people with no settled home |
| agriculture | the raising of domesticated plants and animals |
| division of labor | work being divided |
| environment | surroundings |
| maize | corn |
| subsist | survive |