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| Prime Meridian | an imaginary line of longitude, or meridian, that runs from the North Pole to the South Pole through Greenwich, England. |
| Tropic of Cancer | The nouthern boundry of the Tropics,( the band of the Earth that recieves the most direct light and heat energy from the sun.) ( 23.5 N) |
| Degree | a unit of measure used to determine absolute location, on globes and maps, latitude and longitude are measured in degrees. |
| Equator | An imaginary line that circles the globe at it's widest point (halfway between the north and South poles). Dividing the Earth into two halves called Hemispheres; used as a reference point from which north and south latitudes are measured. |
| Plain | A large area of flat or gently rolling land. |
| Meridian | An imaginary line that circles the globe from North to South and runs through both the North and South Pole; the lines of longitude on maps or globes or Meridians. |
| Longitude | The series of imaginary lines, also called Meridians, that run North and South from one pole to the other; used to measure a distance East or West of the Prime Meridian in degrees. |
| Parallel | In Geography, any of the imaginary lines that circle the Earth parallel to the Equator; a latitude line. |
| Artic Circle | Line of latitude around the Earth near the North Pole (66 degrees N.) |
| Geography | The study of the Earth's surface and the processes that shape it the connections between places and the relationships between people and their environment. |
| Antartic Circle | Lien of latitude around the Earth near the South Pole. ( 66 degrees S.) |
| Latitude | the series of imaginary lines, also called parallels, that circle the Earth parallel to the Equator; used to measure a distance north or south of the equator in degrees. |
