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pure substance matter that always has exactly the same composition
Element a substance that cannot be broken down into simpler substances
atom the smallest particle of an element
compound a substance that is made from two or more simple substances and can be broken down into those simpler substances
heterogenous mixture a type of mixture in which the parts of the mixture are noticeably different from one another
homogeneous mixture a type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance in a mixture from another
solution a mixture that forms when substances
suspension separates into layers after time
colloid a mixture that contains some particles that are intermediate in size
physical property ant characteristic of a material that can be observed or measured with out changing the composition of the substances in the material
viscosity the tendency of a liquid to keep from flowing
conductivity a materials ability to allow heat heat or electric charges to flow
malleability the ability of a solid to be hammered with out shattering
melting point the temperature at which a substance changes from solid to liquid
boiling point the temperature at which a liquid turns into a gas
filtiration a process that separates materials based on the size of the particles
distillation a process that separates the substances in a solution based on their boiling point
physical change a change that occurs when some properties of a material change, but the substances in the material stays the same.
chemical property any property that produces a change in the composition of matter
flammability a materials ability to burn in the prescence of oxygen
reactivity the property that describes how readily a substance how readily a substance combines chemically with other substances
chemical change change that occurs when a substance reacts and forms one or more new substances
precipate a solid that forms and separates from a liquid mixture
Created by: macolm.boyd