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Physical-Chemical Pr
| Term | Definition |
|---|---|
| matter | anything that has mass and volume (takes up space) |
| mass | the amount of matter in an object |
| volume | the amount of space an object occupies |
| weight | the measure of gravity |
| density | ratio of mass per unit volume d=m/v |
| conductivity | the ability to transfer heat/electricity |
| malleability | the ability to pound into thin sheets |
| solubility | the ability of one substance to dissolve into another substance |
| physical properties | characteristics that can be measured or observed |
| physical change | a change in the form of a substance that DOES NOT change its identity |
| solid | definite shape-definite volume- slow moving particles |
| liquid | definite volume- takes shape of container- fast moving particles |
| gas | volume and shape of container - extremely fast moving particles |
| melting | changing from a solid to a liquid |
| freezing | changing from a liquid to a solid |
| evaporation | changing from a liquid to a gas |
| condensation | changing from a gas to a liquid |
| sublimation | changing from a solid to a gas |
| chemical properties | characteristics that describe a substance's ability to change |
| chemical change | a change in a substance when new substances are formed |
| precipitate | a solid forming in a solution |
| oxidation | gain of oxygen- rust |
| endothermic | reactions that require heat (gets colder) |
| exothermic | reactions that release heat (gets warmer) |