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Science chapter 2
The Particle of Matter
| Term | Definition |
|---|---|
| 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. |
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yoceli
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