We use imaginary lines to help locate where a place is in the world. the Arctic Circle (the North Pole) the Antarctic Circle (the South Pole) the Tropic of Cancer the Tropic of Capricorn and the ...

Explains the concepts of latitude and longitude, which are used to locate places on Earth. It describes how latitude is measured in degrees north or south of the equator and how longitude is ...

The Equator is a line of latitude that bisects the globe at its widest point, and where the hours of light and darkness are equal throughout the year. The Equator passes through 13 countries ...

When longitude was first understood sailors measured their position by degrees east or west of their port of departure. Later many countries established their own prime meridians. It was not until the ...