Earth: Our Home
Earth Bio/Facts Diameter: 12,742 km Relative Mass (Earth = 1): 1 Density (kg/m 3 ): 5220 Distance from Sun (AU): 1 Length of Day: 24 hours Length of Year: days Mean Temp: 59 ⁰F
Atmosphere Composed of Nitrogen (N 2 ) and Oxygen (O 2 ) gases, with varying amounts of water vapor (H 2 O) present. Clouds made of water and ice cover parts of the planet. Contains a thin layer of ozone that shields planet.
Moon
Moon Facts No atmosphere or clouds Covered with volcanic rock, but no active volcanoes 5 th Largest moon in solar system (three Jupiter moon’s and one Saturn moon larger) Largest Moon relative to planet!
Earth