| A | B |
| region | an area that is defined by certain features |
| tributary | a river or stream that flows into a larger river |
| artifacts | an object made by human hands, such as copper jewlery, arrowheads |
| mound | a large hill like structure |
| agriculture | farming |
| adapt | to change in order to survive |
| glaciers | a huge sheet of moving ice |
| descendant | someone who comes from a group or family who lived in the past |
| Mound Builders | built mounds for religious and burial purposes |
| Archeologists | use special tools and equipment to find artifacts |
| Ice Age | a period of time when the Earth became very cold |
| Mammoth | animal hunted by the first people in Ohio |
| nomads | living in groups and following the food source |
| Till Plains | plains, fertile soil |
| Glaciated Appalachian Plateau | fertile soil, plateau |
| Lake Plains | fertile soil, sandy beaches, plains |
| culture | a way of life shared by a group of people |
| regions | an area with features in common, such as landforms and bodies of water |
| trade | the exchange of goods and services |
| Lexington Plain | not a plain, very hilly and rocky |
| Unglaciated Appalachian Plateau | plateau, forests, glaciers did not cover this area of Ohio |
| Fort Ancient People | built Great Serpent Mound, Alligator Mound |