• Question: whi the earth round?

    Asked by shiniqua to Arlene, Colin, David, Eugene, Paul on 21 Nov 2012.
    • Photo: Paul Higgins

      Paul Higgins answered on 21 Nov 2012:

      The earth is round because a sphere is the most efficient way to pack all the rock and dirt into a small space. Gravity pulls everything inward in all directions, and it all smoshes together into a round ball.

    • Photo: David McKeown

      David McKeown answered on 22 Nov 2012:

      The Earth is not exactly round, it is what is called an oblate “spheroid”. Which is a fancy word for a round thing someone squashed at its poles (top and bottom) and so it is a bit swollen at the equator (in the middle)