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physical science 1

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 to a gas.
condense the change in state from i 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 which 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 volume.
Matter Anything that has mass and takes up space .
Melt The temperature at which a substance changes from solid to a liquid .
Molecule A natural group of two or atoms held together by covalent bonds.
Particles Smallest possible unit or matter
Particles motion Way in which atoms,ions,or molecules move.
Phase A physically distinctive from matter ,such as a solid ,liquid.
phase change a change from one state(solid,or,liquid or gas)to another without a change in chemical composition
pressure the physically forced 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
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: user-1718157
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