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17 Cards in this Set
- Front
- Back
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Latitude
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the distance north or south of the equator, measured in degrees
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Longitude
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the distance east or west of the prime meridian, measured in degrees
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Contour Line
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line on topographic map that indicates an elevation; Every point along a contour line has the same elevation
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Contour Interval
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on a topographice map, tells the distance in elevation between adjacent contour lines
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Hypothesis
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a tentative explanation that is tested to determine if it is valid
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Theory
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a well tested and widely accepted view that explains certain observable facts
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System
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any size or group of interacting parts that form a complex whole
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Atomic Number
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the number of protons in the nucleus of an atom
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Atomic Mass
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the total mass of an atom (protons plus neutrons)
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Atomic symbol
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1- or 2-letter internationally agreed code for a chemical element
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Covalent Bond
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a bond that forms when elements share electrons
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Ionic Bond
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a bong that forms between negative and positive ions
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Metallic Bond
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a bond that forms when electrons are shared by metal ions
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Compound
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a substance formed by the chemical combination of two or more elements in definite proportions and usually having properties different from those of its constituent elements
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Isotope
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an atom with the same number of protons but different number of neutrons for a given element; An isotope's mass number i different from that of the given element
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Element
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a substance that cannot be broken down into simpler substances by ordinary chemical or physical means
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Mineral
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a naturally occurring, inorganic crystalline material with a unique chemical composition
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