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PSV1

QuestionAnswer
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 liquid to gas
condense the change in state gas to 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 liquid freezes
Gas A state of matter with no definite shape or volume
Inert Having little or no ability to react
Kinetic Energy Energy that an object has due to its motions.
Liquid a state of matter that has no define shape or volume
matter anything that has mass and takes up space
melt the temperature at which a substance changes solid to liquid
molecule a neutral group of 2 or more atoms held together by covalent bonds
particle smallest possible unit in matter
particle motion ways of atoms, ions, or molecules move
phase a physically distinctive form of matter, such as solid, liquid, or gas
Phase change a change from 1 state(solid, liquid or,gas) to another without a change in chemical compostion
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 or volume.
system A group of parts that work together as a whole.
temperature A measure of the average energy of motion of the particles of a substance.
Thermal 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 one object to another.
Convection The transfer of thermal energy by the movement of fluid.
Radiation The transfer of energy by electromagnetic waves.
Created by: Lynden s Dey
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