jueves, 23 de septiembre de 2010

voc 7 The inner planet system

Planet  a large body orbiting a star , such as a sun












Solar system a star such a sun and all the object orbiting it .







Asteroid a roky metalic object tha orbit the sun .









Kepler´s law   laws that summarize the movement of the planets 

No hay comentarios:

Publicar un comentario