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Stack #35740

6th grade matter vocab

QuestionAnswer
matter the stuff that makes up everything in the universe
characteristic property a quality of a substance that never changes and can be used to identify the substance
boiling point the point at which a substance changes from a liquid to a gas
melting point the temperature at which a substanace changes from a solid to a liquid
physical change a change in a substance that does no change it's identity; for example a change of state
chemical change a change in which one or more a substances combine or breck apart to form new substances
chemical activity a characteristic property of a substance that indicates it's ability to undergo a specific chemical change
mixture two or more substances that are mixed togeather, but not chemically combined
solution a very well mixed mixture
pure substance a substance made of only one kind of matter and having definite properties
element a substance that cannot be broken down into other substances by chemical or physical means
element a substance that cannot be broken down into other substances by chemical or physical means
compound a substance made of two or more elements chemically combined
weight a measure of the force of gravity on an object
mass a measurement of how much matter is in an object
international system of units (SI) the system of units used by scientists to measure the properties of matter. (also IU)
volume the amount of space that matter occupies l x w x h = v
density the measurement how much mass of a substance is contained in a given volume d = m/v
atom the smallest particle of an element
molecule a combination of two or more atoms
chemical bond the force that holds two atoms together
Created by: shdonovan on 2006-03-01



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