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MRS. ISENHART
SCIENCE Three Layers of Earth Ch1 Sect 1 Vocabulary
| Term | Definition |
|---|---|
| atmosphere | the air that surrounds the earth |
| biosphere | the part of the earth that holds all living and non living things |
| geosphere | the earth's crust and its inner layers |
| hydrosphere | all the earth's salt water and freshwater |
| system | a combination of parts that work together |
| asthenosphere | the layer of the mantle on which the sections of crust move |
| core | the innermost layer or center of the earth |
| inner core | the innermost layer of the core made of hot, dense, solid metals |
| lithosphere | the outermost layer of the mantle including the crust |
| magma | minerals in the form of hot liquid rock; found in the mantle |
| mantle | the layer of iron-rich minerals surrounding the core |
| outer core | the outermost layer of the core made mainly of liquid iron and nickel |