| Term | Definition |
|---|
| Properties | to describe matter can be classified as extensive or intensive. |
| Mass | of an object is measure of the amount the object contains. |
| Volume | of an object is a measure of the space occupied by the object . |
| extensive property | is a property that denpends on the amount of matter in a sample . |
| intensive property | is a property that depends on the type of the matter in a sample ,not the amount of matter . |
| Substance | matter that has a uniform and define composition . |
| every sample of a given substance | has identical intensive properies because every sample has the same composition. |
| Physical property | is a quality or condition of a substance that can be observed or measured without changing the substance's composition. |
| three states of matter | soild , liquid ,and gas . |
| soild | is a form of matter that has a definite shape and volume . |
| liquid | is a form of matter that has an indefine shape,flows, yet has a fixed volume. |
| gas | is a form that takes both the shape and volume of its container . |
| vapor | desribes the gaseous state of a substance that is generally a liquid or soild at room temperture ,as in water vapor . |
| physical change | some properies of a material change ,but the composition of the material does not change . |
| physical changes can be classifed | as reversible or irreversible . |
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