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Spheres of the earth. By: Park Myers. Lithosphere. Definition: The Lithosphere is the crust and upper mantle of the earth The word Lithosphere means ball of stone in Greek Pangaea was a vast continental area that consists of all the crusts of the earth
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Spheres of the earth By: Park Myers
Lithosphere • Definition: The Lithosphere is the crust and upper mantle of the earth • The word Lithosphere means ball of stone in Greek • Pangaea was a vast continental area that consists of all the crusts of the earth • Plate tectonics theory is that there are plates under the earth’s surface that slide over magma • Volcanism is when magma goes to the surface and erupts • Continental drift is the moving of continents (extremely slowly)
Atmosphere • Definition: The atmosphere is the gases that surround a planet • The atmospheres layers are Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere • The Ozone layer is a layer in earth’s stratosphere at an altitude of about 10km • The relationship between pressure and height is when you are on a high mountain there is higher pressure and when you are under water there is low pressure • The gases in the Atmosphere have taken over 4.5 million years to evolve • The atmosphere is made out of 78% nitrogen, 21% oxygen, and 1% other
Hydrosphere • Definition: The Hydrosphere is lakes and seas • The Hydrosphere forms ¾ of the surface of the earth • The Hydrosphere is divided into two categories fresh water and salt water • The water cycle is when water circulates between the earth’s ocean, atmosphere, and land • Precipitation is rain, snow, sleet that falls to the ground • Aquifers is a body of permeable rock that can contain groundwater
Biosphere • Definition: The Biosphere is all the living organisms on a planet • The food chain is when a series of organisms depend on each other for food • An Ecosystem is organisms interacting in their physical environment • Components is part of an element of a larger whole • The Biosphere evolved about 3.5 Million years ago • The Biosphere extends to any place of life that can exist on earth
How the spheres interact • The Atmosphere interacts with all living things because it contains oxygen • The Hydrosphere interacts by providing water and nutrients for all living things • Biosphere is all living things on earth so that is how it interacts • The lithosphere is were all the spheres meet
