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Physical Science1

Physical Science 1

TermDefinition
Atom the basic particle from which all elements are made
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 which molecules at the surface of a liquid absorb enough energy to change to a gas.
freeze the temperature in which liquid freezes.
gas av state of matter with no definite shape or volume.
inert having little or no ability to react.
Kinetic energy energy that a object has due to its motion
liquid a state of matter that has no definite shape but definite volume
matter anything that has mass and take up space
melt temperature when substances change from a solid to a liquid.
molecule a neutral group of 2 or more atom held together by covalent bonds
particle smallest unit of matter
particle motion ways atoms,ion, or molecules move
phase a physically distinctive form of matter without change in chemical composition
phase change change from one state to another without change in chemical compostition.
pressure the physical force exerted on an object
pure substances substance made of one matter having definite property's.
solid a state of matter that has definite shape and volume
system a group of parts that work together as a hole
temperature a measure of the average energy of motion of the particles of a substance
thermal energy the total kinetic and potential energy of motion of the particles of a substance
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
covection the transfer of thermal energy by movement of fluid
radiation the transfer of energy by electromagnetic waves
Created by: user-1717929
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