| Term | Definition |
| artifact | An object that we find that was by people in the past |
| invention | Something that has been made for the first time |
| colony | A settlement that is ruled by another country |
| legend | A story that teaches a lesson or explains something |
| revolution | A fight for change in government |
| reservoir | A lake used for collecting and storing water |
| decade | 10 years |
| century | 100 years |
| transportation | The way something moves from one place to another |
| disaster | Something that happens that causes great harm to a community |
| lodge | Home made from logs, earth, and grass |
| teepee | Triangle shaped shelters made from buffalo skins stretched over poles |
| canal | Waterways built by people |
| causeways | Roads built on soil piled up in shallow water |
| empire | All the land and people under the control of a powerful nation |
| artifacts | A tool or piece of jewelry |
| archaeologist | Scientists who look for artifacts and try to explain how they were used |
| pollution | Exhaust or smoke from factories and vehicles |
| solution | A way to solve a problem |
| slave | A person who is owned by another person and works without pay |
| colony | A settlement that is ruled by another country |
| tax | Extra money paid for things that are wanted or needed |
| revolution | A fight for a change in government |
| independence | Freedom from the rules of others, and freedom to make your own rules |
| constitution | A plan of government |
| civil war | A war in which two parts of one country fight each other |
| amendment | A change to something that is already written |
| communication | The sharing of feelings, thoughts, and information |
| transcontinental | Something that goes from one side of the continent to the other |
| suburbs | Communities near a city |
| satellite | A spacecraft that is used to send radio, telephone, and television signals |
| historical society | A group of people, usually volunteers, who have a special interest in the history of their community |