| Term | Definition |
|---|
| matter | anything that has volume and mass |
| volume | the amount of space that something occupies or the amount of space that something contains |
| mass | the amount of matter that something is made of |
| gravity | a force of attractions between objects that is due to their mass |
| weight | a measure of the gravitational force exerted on an object, usually by the Earth |
| physical property | a property of matter that can be observed or measured without changing the identity of the matter |
| density | the amount of matter in a given space; mass per unit volume |
| chemical property | a property of matter that describes a substance based on its ABILITY to change into a new substance with different properties |
| physical change | a change that affects one or more physical properties of a substance; many physical changes are easy to undo |
| chemical change | a change that occurs when one or more substances ARE changed into entirely new substances with different properties; cannot be reversed using physical means |
| states of matter | the physical forms in which a substance can exist |
| solid | the state in which matter has a definite shape and volume |
| liquid | the state in which matter takes the shape of its container and has a definite volume |
| gas | the state in which matter changes in both shape and volume |
| plasma | the state of matter that does not have a definite shape or volume and whose particles have broken apart |
| change of state | the conversion of a substance from one physical form to another |
| melting | the change of state from a solid to a liquid |
| freezing | the change of state from a liquid to a solid |
| vaporization | the change of state from a liquid to a gas; includes boiling and evaporation |
| evaporation | vaporization that occurs at the surface of a liquid below its boiling point |
| condensation | the change of state from a gas to a liquid |
| sublimation | the change of state from a solid directly into a gas |
| boiling | vaporization that occurs throughout a liquid |
| viscosity | a liquid's resistance to flowing |
Combine with other sets
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