6AB-1 STATES OF MATTER
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Created by:
donfitz927 on October 6, 2009
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25 terms
Terms | Definitions |
|---|---|
 matter | anything that has mass and takes up space |
| physical property | can be observed without changing a substance into another substance (softness, color, malleability, etc...)) |
| chemical property | describes the ability of a substance to change into a different substance (flammability, reactivity, etc...) |
| element | a pure substance that cannot be broken down into any other substance by chemical or physical means. |
| atom | the basic particle of an element. |
| molecule | a particle formed when two or more atoms are held together by chemical bonds. |
| mixture | is two or more substances that are together in the same place but are not chemically combined. |
| homogeneous | describes a mixture where substances evenly mixed throughout... example - a solution |
| heterogeneous | describes a mixture that is not evenly mixed, i.e. concrete, salad |
| weight | a measure of the force of gravity on an object |
| mass | measurement of how much matter an object contains |
| volume | the amount of space that matter takes up |
| density | a measurement that relates the volume and mass of an object |
| endothermic | a chemical change in which energy is taken in, or absorbed |
| exothermic | a chemical change of energy that releases or gives off energy |
| solid | a kind of matter that has a fixed shape and a fixed volume |
| liquid | a kind of matter that has a definite volume but no definite shape |
| gas | a kind of matter that easily changes volume and shape. |
| melting | the change in state from solid to liquid |
| freezing | the change in state from liquid to solid |
| boiling | the change in state from liquid to gas |
| evaporation | the change in state from liquid to gas |
| Condensation | the change in state from gas to liquid |
| Boyle's Law | pressure and volume of a gas are inversely related (under constant temperature) |
| Charles' Law | temperature and volume of a gas are positively related (under constant pressure) |
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