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5.6D Particles Vocab

TermDefinition
solid a state of matter with definite shape and volume
liquid a state of matter with definite volume and no definite shape
gas a state of matter with no definite shape or volume
particle a very small unit that makes up matter
expand an increase in the volume of a substance while the mass stays the same
contract a decrease in the volume of a substance while the mass remains the same
matter anything that has mass and takes up space
mass a measure of the amount of matter in a sample
model a representation of a real-world object, system, or process, used to help understand it better
thermal energy heat energy that increases or decreases the motion of the particles that make up a physical state
states of matter the forms matter can take, such as solid, liquid, and gas; sometimes called phases of matter
Created by: user-1924750
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