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Key TermDefinition
boiling point temp. at which liquid boils
melting point the temperature at which a solid melts
celsius Of or relating to a temperature scale that registers the freezing point of water as 0° and the boiling point as 100° under normal atmospheric pressure
condensation the act or process of reducing a gas or vapor to a liquid or solid form.
expansion the act or process of expanding
evaporate To convert or change into a vapor
Fahrenheit Of or relating to a temperature scale that registers the freezing point of water as 32° and the boiling point as 212° at one atmosphere of pressure
Phase or state a stage in a process of change or development
temperature The degree of hotness or coldness of a body or environment.
liquid composed of molecules that move freely among themselves but do not tend to separate like those of gases
Solid having relative firmness, coherence of particles, or persistence of form, as matter that is not liquid or gaseous
Gas a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid.
temperature thermometers are instruments that meansure__________
kinetic energy Tempature is the average _______ _______ of particles within a body. Temperature is a measure of how hot something is
heat transfer The transfer of energy from one body to another is called ________
heated matter expands when __________
contracts matter _______ when cooled
Created by: Sue L