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TermDefinition
atom the basic particle from which all elements are made the smallest particle of an element that has the properties of that element.
boil the change in state from a liquid to a gas
condense the change in state from a gas to a liquid
evaporate the process by which molecules at the surface of a liquid absorb enough energy to change to a gas
freeze the temperature at which a liquid freezes
gas a state of matter with no definite shape or volume
lnert having little or no ability to react
kinetic energy energy that an object has due to its motion
liquid a state of matter that has no object has to its motion
matter anything that has mass and takes up spaace
melt the temperature at which a substance changes from a solid to a liquid
molecule a neutral group of two or more atoms held together by covalent bonds
particle smallest possible unit of matter
particle motion ways in which atoms ions or molecules move
phase a physically distinctive form of matte such as aquid or gas solid li
phase change a change from one state soild or liquid or liquid or gas to another without a change in chemical composition
pressure the physical force exerted on an object
pure substance a substance made of only one kind of matter and having definite properties
solid a state of matter that has a definite shape and volume
system a group of parts that work together as a whole
temperature a measure of the average energy of motiom of the particles of a substance
thermal energy energy the total kinetic and potential energy of all the particles of an object
vapor gaseous state of a substance that is a liquid or a solid at room temperature
conduction the transfer of thermal energy from object to another
convection the transfer of thermal energy by the movement of fluid
radiation the transfer of energy by electromagnetic waves
Created by: user-1718260
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