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Mass (kg)............................................ 5.98 x 10^24
Diameter (km)........................................ 12,756
Mean density (kg/m^3) ............................... 5520
Escape velocity (m/sec).............................. 11,200

Distance from the sun ............................... Shortest-91,400,000 mi.(147,100,000 km.)
           	       				      Greatest-94,500,000 mi.(152,100,000 km.)
		 	                              Mean-92,960,000 mi.(149,600,000 km.)
Rotation period (length of day in Earth hours)....... 23.93
Revolution period (length of year in Earth days)..... 365.26

Obliquity (tilt of axis in degrees).................. 23.4
Orbit inclination (degrees).......................... 0
Orbit eccentricity(deviation from circular).......... 0.017

Mean surface temperature(Fahrenheit)................. 57
Maximum surface temperature (Fahrenheit)............. 136 at Al Aziziyah, Libya
Minimum surface temperature (Fahrenheit)............. -128.6 at Vostok Station in Antarctica

Visual geometric albedo (reflectivity)............... 0.39
Highest point on surface............................. Mount Everest 
                                       (over 8 km above sea-level)
Atmospheric components............................... 78% nitrogen, 
                                                      21% oxygen, 
                                                       1% argon
Surface materials....................................basaltic and 
					         granitic rock and 
					         altered materials

Number of Satellites.................................1

Interesting Facts about this Planet

• Fifth largest planet
• Supports life
• 4.5-5 billion years old
• The Earth is covered with water, rock, and soil, and surrounded by air
• Mount Everest, 29,028 feet (8,848 meters)above sea level, and is the highest point on the surface
• The deepest part of the ocean is an area of the Mariana Trench in the Pacific Ocean southwest of Guam 36,198 feet(11,033 meters) below surface.
• The average ocean depth is 12,200 feet(3,730 meters)
• Earth has two polar caps, 7 continents, and 4 Oceans
• 70% of earth is water and 30% of earth is land
• The earth has 4 layers: Crust, Mantle, Outer Core, and Inner Core
• Four main kinds of changes affect the earth's surface: weathering, erosion, mass movement, and changes in the earth's crust