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15 Cards in this Set
- Front
- Back
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How do scientists classify rocks?
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Based on their physical properties, the minerals they contain, and how they are formed
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Which type of rock can a metamorphic rock be formed from?
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any type of rock
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Fossils are usually found in which type of rock?
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sedimentary rock
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Which igneous rocks contain large crystals and why?
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The igneous rocks that form beneath the Earth because the rocks cool slowly.
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Does the mineral quartz come in only one color?
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no, it comes in many colors.
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metamorphic rock
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a rock that is formed from another kind of rock by extreme heat and pressure deep inside Earth
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lava
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melted rock that reaches the Earth's surface
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sedimentary rock
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rock that is formed when tiny particles of either rock or plant and animal materials are pressed together in layers
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cleavage
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the way a mineral splits
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igneous rock
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rock that is formed when melted rock cools and hardens
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ore
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rock that is mined because it contains a useful substance
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magma
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melted rock below Earth's surface
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How does a scientist determine a mineral's hardness?
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a scientist tests to see how easily scratched it is by another mineral
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mineral
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a natural, nonliving substance with a specific chemical makeup
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luster
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the way light reflects off the surface of a mineral
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