sábado, 25 de septiembre de 2010

Vocabulary#9 The Outer Solar System

Comet: a ball of rock and ice that orbit the sun.

Meteoroid: a small asteroid ( rocky object that orbit the sun ) , wich may be far out in the solar system or close to the inner planets.

meteor: a Meteoroid that enters Earth atmospher and borns with a strike of light.


meteorite: any part of the Meteoroid that reaches earth surface.

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