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Matter Vocabulary

Review for Matter Quiz

TermDefinition
solid definite shape and volume with tightly packed particles that vibrate slowly
liquid definite volume but no definite shape with particles closely packed, but freely moving
gas no definite shape or volume with particles that are moving very fast, spreading apart
crystalline solid particles are arranged in a regular, repeating pattern, ex- snow, salt, and sugar
amorphous solid particles are not arranged in a regular pattern, ex- rubber, glass, and plastic
fluid any substance that flows, ex- liquids and gases
surface tension the result of the inward pull amoung molecules that brings the molecules on the surface closer together
viscosity a liquids resistance to flowing
melting a solid turning into a liquid as it gains heat energy
freezing a liquid turning into a solid as it loses heat energy
condensation a gas turning into a liquid as it loses heat energy
vaporization a liquid turning into a gas as it gains heat energy
sublimation a solid turning into a gas as it gains heat energy
evaporation vaporization that occurs on the surface of a liquid
boiling vaporization that occurs both on and below the surface
melting point the temperature at which a substance changes from a solid to a liquid
freezing point the temperature at which a substance changes from a liquid to a solid
boiling point the temperature at which a liquid boils
chemistry the study of the properties of matter and how they change
element a pure substance that cannot be broken down by physical or chemical means
atom the basic particle that makes up all elements
chemical bond an attraction between two atoms
molecule two or more atoms chemically bonded together
Created by: jlodico
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