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Rhodes Unit 6.1-6.3

Rocks and Earth's Layers

QuestionAnswer
mineral a naturally occurring, usually inorganic solid that has a definite crystalline structure and chemical composition
weathering the process by which water, wind, ice, and changes in temperature break down rock
erosion the process by which sediment is moved from one place to another
deposition the process by which sediment comes to rest
igneous rock a type of rock that forms when magma or lava cools and hardens to become solid
sedimentary rock a type of rock that forms when minerals that form from solutions or sediment from older rocks get pressed and cemented together
metamorphic rock a type of rock that forms when pressure, temperature, or chemical processes change existing rock
rock cycle a series of processes in which rock changes from one type to another
uplift the rising of regions of the crust to higher elevations
subsidence the sinking of regions of the crust to lower elevations
rift zone an area where a set of deep cracks form where tectonic plates are pulling apart
crust the outermost solid layer of Earth
mantle a region of hot, slow-flowing, solid rock
convection the movement of matter that results from differences in density caused by variations in temperature
core extends from below the mantle to the center of Earth
lithosphere the outermost, rigid layer of Earth; made of the crust and the upper layer of the mantle
asthenosphere a layer of weak or soft mantle that is made of rock that flows slowly
mesosphere the strong, lower part of the mantle
outer core the liquid layer of Earth's core
inner core the solid, dense part of the Earth's core
Created by: erinrhodes
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