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ES Ch 1

TermDefinition
Hydrosphere The water portion of the Earth
Atmosphere Gaseous envelope around a planet
Geosphere Layer of Earth under the atmosphere and hydrosphere; it is composed of the core, mantle, and crust
Biosphere The sphere in which, all life on Earth. Parts of solid Earth, hydrosphere, and atmosphere where living organisms are found.
Core The innermost layer of the Earth. Located beneath the mantle and divided into inner core and outer core.
Mantle Located below the crust. 2,890 km thick.
Crust Thin rocky outer layer of Earth.
Earth Science Name for all the sciences that collectively seek to understand the Earth.
Geology Science that examines the earth, its form and composition, changes it has undergone and is undergoing.
Oceanography Scientific study of the oceans.
Meteorology Scientific study of the atmosphere.
Astronomy Scientific study of the universe.
Asthenosphere A weak soft layer of the mantle situated below the lithosphere; The rock within this zone is easily deformed.
Lithosphere The rigid outer layer of Earth, including the crust and the upper mantle.
Created by: Mrs.Stichter
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