| Term | Definition |
| adobe | sun-dried brick made of clay and straw common use in contries having little rainfall |
| irrigate | supply with water, as with channels or ditches or streams |
| petroglyph | old design or painting on a rock |
| stalactite | a deposit that hangs like an icicle from the roof of a cave |
| continental divide | the top of the Rocky Mountains that divides North America's rivers into the ones that flow eastward and the ones that flow westward |
| mesa | broad, flat-topped landforms with steep sides; smaller than a plateau. |
| pueblo | a communal village built by Indians in the southwestern United States |
| diversity | how similar or different group members are from one another |
| panhandle | a relatively narrow strip of land projecting from some larger area |
| reservation | public land set aside by a government for use by Native American tribees |