| A | B |
| Paleolithic | Old stone Age |
| Neolithic | New Stone Age |
| Hunter-gatherers | wild animals, nuts and berrys |
| Agriculture | domesticating plants and animals |
| Hominids | Early ancestors of humans |
| Ancestor | a person from whom one is descended |
| Nomads | moved from place to place with no permanent shelter |
| Revolution | a complete change in the ways of thinking, working,or living |
| Domesticate | changing the growth of plants or behavior of animals that are useful to humans |
| Shelters | people began to settle down in one permanent place and built |
| Mud Bricks | Built permanent shelters with this material |
| communities | allowed people to better organize themselves |
| trade | the buissness of buying and selling or exchanging items |
| resource | something that can be used to fulfill a need |