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Science
| Term | Definition |
|---|---|
| Gas | the state of matter in which a material has neither a definite shape nor a definite volume |
| Heat of vaporization | amount of energy is the heat of vaporization for water |
| pressure | the result of a force distributed over an area |
| chemical change | occurs when a substance reacts and forms one or new substance |
| flammability | a materials ability to burn in the presence of oxygen |
| filtration | a process that separates materials based on the size of their particles |
| Physical property | any characteristic of a material that can be observed or measured without changing the composition of the substance in the material |
| melting point | the temperature at which a substance changes from a solid to a liquid |
| condensation | the phase in which substances change from gas or vapor |
| conductivity | a material's ability to allow heat to flow |
| phase change | the reversible physical change that occurs when substance change from one state to another |
| chemical property | an ability to produce a change in composition of matter |
| pure substance | a simply substance matter that always has exactly the same composition |
| homogeneous mixture | the substance are so evenly distributed that it is difficult to distinguish one substance in the mixture from another |
| distillation | a process that separates the substance in the solution based on their boiling point |
| physical change | when some of the properties of a material change but the substance in material remains the same |
| viscosity | tendency of a liquid to keep from flowing it resistance to flowing |
| evaporation | the process that changes the substance from liquid to a gas at temperature below substances boiling point |
| liquid | the state of matter in which a material has a definite volume but not a definite shape |
| vaporization | phase change in which liquid changes into gas |
| precipitate | any solid that forms and separates for a liquid mixture |
| sublimation | substance change form solid to a gas or vapor |
| deposition | when a gas or vapor changes directly into a solid without changing into a liquid |
| solid | the state of matter in which materials have definite shape and volume |