| A | B |
|---|
| empire | a group of lands under a ruler or government |
| terraces | flats steps |
| culture | a way of life |
| Aztecs | a civilization in central Mexico that gave bloody sacrifices |
| Mayas | a civilization near Guatemala that may have had 50,000 people in it |
| Incas | a civilization in present day Peru that worshiped the sun god |
| irrigation | a method of supplying water to crops |
| quipu | a knotted cord |
| Anasazi | a civilization that formed at what is now the four corners that was made up of mostly plateaus and rivers |
| Hopewell | mound builders that started a civilization in present-day midwest |
| Cahokia | a civilization that started in the Mississippi River Valley and built huge temple-topped mounds |
| climate | the weather and temperature of an area |
| mesas | steep sided plateaus |
| highlands | lands that are high in elavation |
| lowlands | lands that are low in elavation |
| Piedmont | a plateau that starts at the Appalachian mountain and ends at the Atlantic Coastal Plains |
| Interior Plains | The plains in the central part of the United States that includes the Great and Central plains |
| Great Basin | a desert like region in the west |
| Rocky Mountains | The largest mountian chain in North America |
| Appalachian Mountains | largest mountain east of theMississippi |
| Intermontane Region | The region between the Pacific and Rocky Mountains |
| Fall Line | where the Piedmont and the Eastern Coastal Plains meet |
