Earths Spheres

Info on the earths Sheres

Earth's Layers

The Earth's layers from the surface to the inside are crust, mantle, outer core and the inner core.
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The lithosphere is the solid outer section of Earth, which includes Earth's crust, as well as the underlying cool, dense, and rigid upper part of the upper mantle.


The biosphere contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth.


The atmosphere contains all the air in Earth's system. It extends from less than 1 m below the planet's surface to more than 10,000 km above the planet's surface. The upper portion of the atmosphere protects the organisms of the biosphere from the sun's ultraviolet radiation. It also absorbs and emits heat. When air temperature in the lower portion of this sphere changes, weather occurs. As air in the lower atmosphere is heated or cooled, it moves around the planet. The result can be as simple as a breeze or as complex as a tornado.


The hydrosphere contains all the solid, liquid, and gaseous water of the planet. It ranges from 10 to 20 kilometers in thickness. The hydrosphere extends from Earth's surface downward several kilometers into the lithosphere and upward about 12 kilometers into the atmosphere.