Earth

Information about Earth
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)	Earth Hours	23.93
Revolution Period (Length of Year)	Earth Days	365.26
Obliquity (Tilt of Axis)	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 (N), 21% Oxygen (O), 1% Rare Gases and about 0.04% Carbon Dioxide (CO2)
Surface materials	Basaltic and Granitic Rock and Altered Materials
Number of Satellites	1

Fifth largest planet

Supports life

4.5 to 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 Marina 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 2 polar caps, 7 continents, and 5 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