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Unit 1 Vocab JKosch

QuestionAnswer
Precision The agreement between several measurements of the same quantity
Accuracy The agreement between a measured value and the true value
Significant digits The certain digits in a measurement as well as one uncertain digit which you have estimated
Quantity A property that can be measured and described by a number and a unit that names the standard used
SI Base Units Seven fundamental units (meter, kilogram, second, Kelvin, mole, ampere, candela
Area How much surface something covers
Volume Area multiplied by height
Data Observations and facts collected in science
Density Defined as mass per unit volume or ratio of mass to volume
Slope The ratio of the change in y to the corresponding change in x for any two points on a line
Constant Quantity that has the same value as the slope of a straight-line graph representing a direct proportion
Macroscopic Observations Observations made about what you see, feel, and smell in a world made up of matter
Chemical changes Changes that produce a new kind of matter with different properties
Melting The term used to describe the change of solid to liquid
Solid Substance with definite volume and shape
Liquid Substance that flows and takes the shape of it container
Gas Substance that takes the shape of and fills its container
Submicroscopic On an invisible level
Fluid Any substance that flows
Mixture Matter that can be physically separated into component parts
Electrolysis Passing an electric current through a substance, causing it to decompose into new kinds of matter
Elements Pure substances that CANNOT be decomposed into new kinds of matter.
Created by: johnkosch94
 

 



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