| Term | Definition |
|---|
| viscosity | Resistance to flow |
| observing viscosity | by thickness to a liquid |
| surface tension | force on surface of a liquid that minimizes the area of the surface |
| higher surface tension | more circuler |
| endothermic | energy is gained |
| phase change | when is there no temp. change |
| states of matter | physical forms in which a substance can exist |
| solid | state of matter that has definite shape and volume |
| liquid | state of matter with a definite volume but takes the shape of its container |
| gas | state of matter that has no definite shape or volume |
| change of state | change of a substance from one physical form to another |
| melting | a change of state from a solid to a liquid |
| evaporation | the change of a substance from a liquid to a gas |
| boiling | the change of a liquid to a vapor, or gas throughout the liquid |
| condensation | change of state from a gas to a liquid |
| sublimation | is the change of state in which a solid changes directly into a gas |
| exothermic | energy is released |
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