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Earth Structures

Minerals, Rock Cycle, Earth's Layers, and Plate Tectonics

QuestionAnswer
The innermost layer of the earth Core
The thinnest, outermost layer of the earth Crust / Lithosphere
The earth layer made up of hot, flowing rock with convection currents. Mantle
The slow-flowing, lower part of the mantle Mesosphere
The upper mantle Asthenosphere
A solid, naturally occurring, inorganic substance with an orderly crystal structure. Mineral
A way to measure a mineral's hardness, based on what it can scratch or be scratched by. The Mohs Scale
The way pieces of Earth’s Lithosphere/crust move and change shape. Plate Tectonics
Continental crust is (thicker / thinner) than oceanic crust Thicker
The place where two tectonic plates meet or touch Boundary
In a _________ boundary, plates move apart from each other. Divergent
In a ____________ boundary, plates move closer together or collide. Convergent
In a ________ boundary, plates slide past one another. Transform
The transfer of heat through a liquid or a gas, due to differences in temperature and density, that occurs in the earth's mantle. Convection Current
A piece of earth's crust sinks down into the mantle Subsidence
A piece of earth's crust is raised Uplift
The way a mineral's surface reflects light; shininess. Descriptors include metallic, dull, glassy, and greasy. Luster
True or false: Color alone is not a good way to identify a mineral. True; some minerals can be thee same but have different colors, and some minerals can be different but have the same colors.
This type of rock is formed when other rocks are exposed to heat and pressure Metamorphic
This type of rock is formed when sediment is compacted and cemented together Sedimentary
This type of rock is formed from cooled magma or lava Igneous
The process of a rock being broken down by a physical or chemical agent. Weathering