| A | B |
|---|
| migration | the movement of people or animals from one place to another |
| fossil | Remains of a living thing from a former geologic age |
| inhabitants | people who live in a particular place |
| erosion | the wearting away of land by wind, water, or weather over al long period of time |
| prehistoric | the period of time before history was written |
| petroglyphs | artword carved into rock walls by the Paleo Indians |
| middens | garbage dumps used by Archaic Indians |
| palisades | a fence of stades set frimly in the ground to enclose or protect a place |
| atlatl | a throwing stick used by the Archaic Indians |
| chiefdoms | groups of tribes with common goals and beliefs that unite for power |
