Earth

Earth




 *  Diameter = 12,756 km, Density = 5.515 g/cm 3, highest density of any planet
 *  Surface Gravity = 9.8 m/s 2
 * third planet (rock) from the sun
 * orbital period of 365 1/4 days
 * one rotation on its axis is what we call one day
 * weathering and erosion continue to change the surface of Earth