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Grade 5 C-2 Sci. Def

Chapter 2 Rocks and Minerals

TermDefinition
mineral A natural, solid material with particles arranged in a repeating pattern
streak The color of the powder left behind when you rub a mineral against a white tile called a streak plate
hardness A mineral's ability to resist being scratched
luster The way the surface of a mineral reflects light
igneous rock A type of rock that forms when melted rock hardens
sedimentary rock A type of rock formed by layers of sediments that were squeezed and stuck together over a long time
metamorphic rock A type of rock changed by heat or pressure but not completely melted
rock cycle The slow, never-ending process of rock changes
Created by: scscolts
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