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Transcript
Sphere of Earth: A layer that surrounds the Earth Atmosphere: Shell of gases that surrounds a planet, for example, Earth a. Earth’s atmosphere is unique because it contains oxygen b. Atmosphere = Air Lithosphere(also known as Geosphere): Solid portion of Earth below the atmosphere and the hydrosphere a. Includes: rocks, mountains and beaches Hydrosphere: Earth’s liquid water a. Includes: oceans, lakes, streams and groundwater Biosphere: The portion of Earth that supports life, from far down in the ocean to high up in the sky a. Plants and animals are part of the biosphere Earth is the only known planet currently supporting life due to the interactions among its four spheres. The four spheres of the Earth system are constantly moving and changing
