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Science chapter 2

The Particle of Matter

TermDefinition
Matter: One fundamental concepts of creation. Anything that occupies space and has mass.
Brownian Motion: The microscopic, random jostling of suspended matter due to the collisions of innumerable gas or liquid particles in which the matter is suspended.
Kinetic-molecular theory: The concept that tiny particles inconstant, random motion make up all matter.
Pure substance: A substance that contains only a single element or compound.
Mixture: A nonchemical combination of two or more substances.
State: A physical form of matter determined by the arrange and energy of its particles. Solid Liquid, and gas.
Solid: The state of a substance in which its particles occupy fixed positions.
Liquid: The state of a substance in which its particles are close together but mobile.
Gas: The state of a substance in which its particles are far a part and have large kinetic energies.
Melting: The change of state from a solid to liquid that occurs when a substance's temperature rises to its melting point.
Freezing: The change of state from a liquid to a solid that usually occurs when a substance cools to its freezing point.
Vaporization: Any process in which particles of s liquid enters the gaseous phase.
Boiling: Rapid vaporization that occurs when a liquids vapor pressure exceeds atmospheric pressure and the state pressure in the liquid, causing it to form bubbles.
Evaporation: Relatively slow vaporization that occurs when a liquids temperature is below its boiling point but above its freezing point.
Sublimation: The charge of state directly from a solid to a vapor, by passing the liquids state, at temperatures below the melting point of the substance.
Condensation: The change from vapor to the liquid state when the vapor cools below it dew point temperature is below its freezing point.
Deposition: The change of state of a vapor directly to a solid, by passing the liquid state. Occurs below freezing point.
Created by: yoceli