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8th G Prop of Matter
properties of matter
| Question | Answer |
|---|---|
| a characteristic of a substance that can be observed without changing the identity of a substance | physical property |
| a measure of the amount of matter present in a given volume of a substance | density |
| a change in any physical property of a substance, not in the substance itself | physical change |
| a characteristic of a substance that describes how it can form a new substance | chemical property |
| a change of one substance into another substancw | chemical change |
| the process by which a solid becomes a liquid | melting |
| the lowest temperature at which a substance starts to melt | melting point |
| the process by which a liquid becomes a solid | freezing |
| the temperature at which a specific liquid becomes a solid | freezing point |
| a process by which a liquid becomes a gas, usually occurs at the surface of a liquid | evaporation |
| the process by which a solid changes directly to a gas without becoming a liquid first | sublimation |
| a process by which a liquid becomes a gas | boiling |
| produces bubbles inside the liquid | boiling |
| the temperature at which a substance changes from its liquid state to its gas state through boiling | boiling point |
| the process by which a gas becomes a liquid | condensation |
| the movement of a substance from an area of a greater concentration fo molecules to an area of lesser concentration of molecules | diffusion |
| has observable properties | matter |
| has properties that can be changed by physical and chemical processes | matter |
| has mass and volume and exists in different states | matter |
| physical property | mass |
| physical property | size |
| physical property | color |
| physical property | shape |
| physical property | texture |
| physical property | volume |
| measure of the amount of matter present in a given volume of a substance | density |
| nomally expressed in units of grams per cubic centimeter | density |
| a property of a substance that remains the same no matter how much of the substance you have | density |
| breaking clay in half | physical change |
| stretching a rubber band | physical change |
| water changing from a liquid to water vapor | physical change |
| wool being pulled from a sheep | physical change |
| burning of wood | chemical change |
| substances forming other substances | chamical change |
| used to identify chemical properties | chemical change |
| silver tarnishing | chemical change |
| change of one substance to another | chemical change |
| change in temperature | sign of chemical change |
| change in color | sign of chemical change |
| formation of bubbles | sign of chemical change |
| formation of a solid | sign of a chemical change |
| has properties that can be changed by physical and chemical processes | matter |
| changes of state | physical changes |
| can change from one state to another | matter |
| solid to liquid | iron melting |
| liquid becomes solid | water to ice |
| liquid to solid | melting iron to solid iron |
| substances with oderly atomic structures have this | well defined melting points |
| has properties that can be changed by physical and chemical processes | matter |
| changes of state | physical changes |
| can change from one state to another | matter |
| solid to liquid | iron melting |
| liquid becomes solid | water to ice |
| liquid to solid | melting iron to solid iron |
| substances with oderly atomic structures have this | well defined melting points |
| the process by which a liquid becomes a solid | freezing |
| the temperature at which a specific liquid becomes a solid | freezing point |
| liquid to gas | evaporation |
| liquid to gas | boiling |
| solid first | sublimation |
| changes directly to gas | sublimation |
| similiar to evaporation | sublimation |
| liquid | boiling point |
| certain temperature | boiling point |
| 100 degree C | boiling point |
| has properties that can be changed by physical and chemical processes | matter |
| used to identify substances | properties |
| can change from one state to another | matter |
| have characteristic properties | substances |
| mass/Volume | density |
| m/V | density |