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phases of matter
| term | definition |
|---|---|
| solid | state of matter in which the particles of matter are closest together, having a definite shape and a definite volume. |
| liquid | state of matter in which the particles are free to move over, under and around one another;particles are farther apart than in a solid. liquids have no definite shape and a definite volume. |
| gas | state of matter in which the particles are moving the fastes and are the farthest away from each other. gases have no definite shape and no definite volume.(fits the container) |
| plasma | state of matter that is achieved under very high temperatures, no definite shape. plasma have no definite shape and atoms have been ripped apart. ex:stars, tv's, and lightning. |
| kinetic molecular theory | the theory that explains differences in the states of matter are caused by how fast the atoms in substances are moving (called kinetic energy). slow=solid faster=liquid super fast= gas super super fast=plasma |
| endothermic | physical changes in which energy is absorbed, the temperature of the substance changes. |
| exothermic | physical change in which energy is released,the temperature of the substance changes. |
| melting | the phase change from asolid to a liquid material to must gain energy (temperature=increase) endo= heat insides |
| melting point | the temperature at which a substance begins to melt the melting point of water is 32 |
| freezing | the phase change from a liquid to a solid,material must lose energy (temperature=decreases) |
| freezing point | the temperature at which a substance begins to melt.the freezing point of water is 32c and 0c |
| vaporization | phase change from a liquid to a gas , material must gain energy (temperature = increase) endo=heat inside |
| evaporation | phase change from a liquid to a gas at the surface of liquid below the boilling point. |
| boilling | the phase change from a liquid to a gasthroughout the entire liquid. endothermic |
| boilling point | the temperature at which a substance begins to boil. the boilling point of water is 212f, 100c |
| condensation | the change in phase from a gas to a liquid, material requires a loss of energy(temperature=decreases) |
| sublimation | the change in phase from a solid to gas without going through theliquid phase. endothermic |
| deposition | phase change froma gas to a solid without going through the liquid phase (frost) exothermic. |
Created by:
nmutton
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