| A | B |
|---|
| archaeology | study of bones, tools, pottery, and other artifacts to learn how ancient people lived |
| glacier | a thick sheet of slowly moving ice |
| migrate | to move |
| agriculture | the process of growing crops and farming |
| surplus | extra amount |
| civilization | a highly developed culture |
| Mesoamerica | the southern part of North America |
| empire | land and people controlled by one ruler or government |
| pueblo | an Anasazi town |
| woodlands | the largely forested eastern half of North America |
| boundary | line that separates one territory from another |
| confederacy | a large group made up of smaller groups |
| drought | a long period of time, sometimes several years, with almost no rain |
