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14 Cards in this Set
- Front
- Back
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what is physical geology
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study of earth materials and processes
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what is historical geology
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origin of the earth and its development through time
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scientific law
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a generalization about the behavior of nature which has no known deviation after numerous observations and experiments
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observation
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attempt to observe data to address the question
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theory
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best current explanation and can be replaced or disposed by a better or revised theory
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principle of uniformity
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the present is key to the past
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what is a mineral
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naturally occurring
inorganic solid ordered internal structure definite chemical composition |
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rock
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a solid aggregate or mass of minerals
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what are the physical properties of minerals
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luster
color streak hardness cleavage fracture specific gravity taste, feel, flexibility, magnetism, effervescence, double refraction |
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luster
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appearrance of a mineral in reflected light
nonmetallic or metallic |
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cleavage
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tendency to break along planes of weak bonding
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conchoidal fracture
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no cleavage
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elements
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basic building blocks of minerals
100 known composed of masses of the same atoms |
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atoms
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smallest particle of matter
electrically charged |
