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Science Chapter 5

Earth's Resources

TermDefinition
mineral natural, nonliving solid crystals that make up rocks
luster the way the surface of the mineral reflects light
hardness how easily the surface of a mineral can be scratched
streak the color of the powder that a mineral leaves when it is scratched across a special plate
cleavage when minerals break along smooth, flat surfaces
igneous rocks rocks that have formed from molten rock
sedimentary rocks rocks that form when layers of sediments settle on top of one another and harden
metamorphic rocks rocks that have changed as a result of heat and pressure
landform a natural land feature on Earth's surface
weathering when rocks are slowly broken into smaller pieces
erosion the process of carrying away weathered bits of rock
fault a break or crack in rocks where Earth's crust can move suddenly
Created by: bmusso
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