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Science Sec.1-1Vocab

characteristic property A quality of a substance that never changes and can be used to identify the substance
boiling point The temperature at which a substance changes from a liquid to a gas
melting point The temperature at which a substance changes from a solid to a liquid
physical change A change in a substance that only involves a change of state, and not a change in identity
chemical change A change in which one or more substances combine or break apart to form new substances with new properties.
chemical activity The characteristic property of a substance that indicates its ability to undergo a specific chemical change
mixture Two or more substances that are physically mixed together but do not chemically combine
solution A very well mixed mixture, usually a liquid and usually transparent (i.e.salt water)
pure substance A substance made of only one kind of matter and having definite properties, such as elements or compounds.
element A substance that can't be broken down into other substances by chemical or physical means
compound A substance made up of two or more elements which are chemically combined
Created by: Katrina1212



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