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Phy Science 3/2/15
| Term | Definition |
|---|---|
| variable | what you are testing in an experiment. the only thing that CHANGES |
| physical properties | a characteristic that can be observed, measured, or changed without changing the substance itself. |
| magnetism | ability to be attracted to a magnet |
| mass | amount of matter in an object. measured with a balance |
| physical state | a form that matter takes when temperature changes, which affects how particles move around. (solid, liquid, gas) |
| density | the amount of mass in a known volume of an object or substance |
| solubility | ability to dissolve ex:salt |
| conductor | allows energy to pass through easily ex:metals |
| insulator | does not allow energy to pass through easily ex: rubber |
| mixture | a combination of 2 or more substances that do not form a new substance and can be separated EASILY ex:trail mix |
| solution | a mixture with one substance spread out evenly in another substance *can NOT be separated easily ex: lemonade |
| structure | a body part that does a certain "job" for an organism ex: lungs, gills, beak |
| function | the JOB that a body part does for an organism ex: breathe |
| gradually | slowly |