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Mrs. P's Chapter 2

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
metric system   a system of measurement based on the number 10  
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International System of Units(SI)   a system of measurement based on multiples of ten and on established measures of mass, length, and time  
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mass   a measure of how much matter is in an object  
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weight   a measure of the force if gravity acting on an object  
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density   measurement of how much mass of a substance is contained in a given volume  
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volume   the amount of space that matter occupies  
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estimate   an approximation of a number based on reasonable assumptions  
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accuracy   how close a measurement is to the true or accepted value  
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precision   how close a group of measurements are to each other  
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percent error   a calculation used to determine how accurate or close to the true value an experimental value really is  
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mean   the numerical average of a set of data  
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median   the middle number in a set of data  
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mode   the number that appears most often in a list of numbers  
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range   the difference between the greatest value and the lease value in a set of data  
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anomalous data   data that do not fit with the rest of the data  
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graph   a picture of information from a data table; shows the relationship between variables  
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linear graph   a line graph in which the data points yield a straight line  
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non-linear graph   a line graph in which the data points do not fall along a straight line  
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