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Marshall-pnhs-intro

QuestionAnswer
The state of matter in which materials have a definite shape and definite volume. Solid
The state of matter in which a material has a definite volume but not a definite shape. Liquid
The state of matter in which a material has neither a definite shape or volume . Gas
The energy an object has due to its motion Kinetic Energy
The reversible physical change that occurs when a substance changes from one state of matter to another. Phase Change
A description of a change in which a system absorbs energy from its surroundings. Endothermic
The energy q substance must absorb in order to change from a solid to a liquid. Heat of Fusion
A description of a change in which a system, releases energy to its surroundings. Exothermic
The phase change in which a substance changes from a liquid into a gas. Vaporization
The energy a substance must absorb in order to change from a liquid to a gas. Heat of Vaporization
The process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point. Evaporation
The pressure caused by collisions of particles in a vapor with the walls of a container. Vapor Pressure
The phase change in which a substance changes from a gas or vapor to a liquid. Condensation
The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first. Sublimation
the phase change in which a gas or vapor changes directly into a solid without first changing into a liquid. Deposition
Created by: emalow14
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