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science
part 1
| Term | Definition |
|---|---|
| what are the three main layers of earth's interior | crust ,mantle, and core |
| the crust is divided into two layers based on location : what are these types and what do they generally compose | continental crust and oceanic crust |
| what is the lithoshere | the lithoshere is composed of the upper riged part of the mantle and the crust |
| what is the composition of the inner core | the inner core is composed of dence ,soil iron and nickle. |
| what process takes place within both the earth's mantle and the outer core | convection currents |
| explain how density causes convention currents : specifically ,how do heated materials and cooled materials move relative to another | heated materials rise and cold materials sink, and heated inside the mantle and outer core is traceform . |
| who was Alfred Wegener , and what name did he give to the single ancient landmass he hypothesized | german scientist who first hypothiesized pangea |
| identify three specific types of evidence (fossils) that support wengeners hypothesized of continental drift | mountain ranges - plant fossils - animale fossils - glacier scratches |
| what process , first proposed by hary hess | seafloor speading |
| describe the process of subduction explaining where the ocean floor sinks and into which layer it moves | subduction is the process where the ocean floor sinks away from mid-ocean trench into the mantle |
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