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Physical Science

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 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 gas.
Freeze the temperature at which a solid 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 motion.
Liquid a state of matter that has no definite shape but has a definite volume.
Matter anything that has mass and takes up space.
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 matter, such as a solid, liquid , or gas,
Phase Change a change from one state (solid 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 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 solid at room temperature
Conduction the transfer of thermal energy from 1 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-1744502
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