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17 Cards in this Set
- Front
- Back
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latitude
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the distance north and 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 a topographic map, that indicates an elevation. every point along an contour line has the same elevation
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contour interval
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on a topographic 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 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 in a atom
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atomic mass
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weight of an atom, protons and newtons
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atomic symbol
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the letters use to represent the element on the periodic table
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covalent bond
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a bond that forms that forms when atoms share electrons
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ionic bond
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a bond that forms between negative and positive ions
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metallic bond
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a bond that forms with electrons are shared by metal ions
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compound
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a substance formed by the chemical combination or two or more elements in different proportions and usually having properties different
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isotope
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an atom with the same number of protons but different number of neutrons for a giving element
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element
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a substance that cannot be broken down into simpler substances by ordinary chemicals 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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