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Physical Science 1

Physical Science

TermDefinition
Atom the basic particle from which all elements are made ; the smallest particle of an element that has properties of that element.
Boil the change in state from a liquid gas.
Condense the change in state from a 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 a liquid freezes.
Gas a state of matter with no definite shape or volume .
Inert having little 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 definite volume.
Matter anything that has mass and takes up space.
Melt the temperature at which 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.
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 if a substance.
Thermal Energy the total kinetic and potential energy of all 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.
Convention the transfer of thermal energy by the movement of fluid.
Radiation the transfer of energy by electromagnetic waves.
Created by: user-1717936
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