Meridians and parallels

Meridians and parallels are a series of imaginary vertical and horizontal lines enables us to identify the exact location of places on Earth.

- MERIDIANS

Meridians are semicircles which go from one pole to the other. The prime or Greenwich meridian (0º) is the point of reference for other meridians. Greenwich meridian divides the Earth into two hemispheres: the western and the eastern hemisphere.

Image by http://kids.britannica.com/

- PARALLELS

Parallels are circles which are perpendicular to the meridians. The Equator (0º) is the most important parallel because it divides the Earth into two hemispheres: the northern and the southern hemisphere.

Image by Kids.britannica.com

THE HEMISPHERES

Image by http://geo1itesm.blogspot.com.es/

Video by Andy Jensen