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Unit 3

States of Matter

TermDefinition
melting change of state from a solid to a liquid with the addition of energy
evaporation the change of a substance from a liquid to a gas
boiling the conversion of a liquid to a vapor
freezing the change of state from a liquid to a solid
condensation the change of state from a gas to a liquid
sublimation the process in which a solid changes directly into a gas
solid the state of matter in which the volume and the shappe of a substance are fixed
liquid the state of matter that has a definite volume but not a definite shape
gas a form of matter that does not have a definite volume or shape
plasma a form of matter that consists of a super heated gas (99% of the univers)
pressure the amount of force exerted on the surface of an object
viscosity the resistance of a gas or liquid to flow
physical property can be observed or measured WITHOUT changing the substance
chemical property describes matter based on its ability to change into NEW matter with DIFFERENT properties
signs of a chemical reaction color change, heat, light, energy, gas, odor, can not reverse changes
Created by: ronikaye
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