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25 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Accuracy
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an indicator of how close a measurement comes to a true or accepted value
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on point
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Exact Number
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a number that has a value with no uncertainty
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Inexact number
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a number whose value has a degree of uncertainty
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Extensive property
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a property that depends on the amount of substance present
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dependent; mass, volume, length
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Intensive property
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a property that is independent of the amount of substance present
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density
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Heterogenous
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a mixture that contains two or more visuall6 distinguishable phases, eaxh with different properties
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Homogeneous
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a mixture that contains only one visually distinguishable phases which has uniform properties throughout
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Isobar
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atoms that have the same mass # but different atomic #
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Isotopes
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atoms with the same atomic # but have different mass #
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Matter
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anything that has mass and occupies space
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Measurement
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the dimensions, capacity, quantity, or extent of something
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Precision
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an indicwtor of how close a series of measurements are to each other
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Qualitative data
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general observations about a system under study
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Quantitative data
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data obtained by various measurements on a system under study
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Random error
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error caused by uncontrollable variables in an experiment
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Systematic error
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a "constant" error associated with an experiment system itself
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Science
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the study in which humans try to organize and exlain, in a systematic and logical manner, knowledge about themselves and their surroundings
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Science discipline
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a branch of scientifix knowledge limited in size and scope to make it more manageable
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Scientific fact
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a reproducible piece of data about some phenomenon that is obtained from experimentation
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Scientific hypothesis
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a model or statement that can be tested by experiment and offers an explanation for a scientific law
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Scientific law
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a generalization that summarizes scientific facts about a natural phenomenon
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Scientific theory
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a scientific hypothesis that has been tested and validated over a long period of time
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Cation
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a postively charged ion
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Anion
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negatively charges ion
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Density
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a ratio of the mass of an object to the volume occupied by the object
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D=m/v
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