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Chemical and Physical Changes In Matter A Laboratory Experiment Prepared by: Diana Ochoa October 23, 2000 Introduction The human eye observes changes in matter, but how to identify what type of change the matter underwent? Matter can be classified by using physical or chemical properties. A physical property is one that can be observed or measured without its physical form changing. Some physical properties are color, odor, density, hardness, structure, solubility, melting and boiling point. A chemical property deals more with the change of the matter's identity by the reaction of two or more substances. Some examples of chemical properties are the following: reacts with acids, reacts with oxygen in air, decomposes on heating, and is acidic or basic. Chemical and physical properties can sometimes be confused for chemical and physical changes, but they are two different things. Physical changes are changes objects undergo that do not change their chemical nature. A physical change involves...

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