Representations of Matter Models and Symbols

1 Identify and explain the differences among observations of matter at the macroscopic, microscopic, and particulate levels. 

2 Define the term model as it is used in chemistry to represent pieces of matter too small to be seen. 

Learn It Now Performance goals tell you what you should be able to do after you study a section. Always focus your study on the goals. When you complete this section, you should know the differences among matter at the macroscopic microscopic, and particulate levels and you should be able to define the term model as it is used in this text. 

The prefix macro- means large, and the prefix micro- means small. The suffix -scopic refers to viewing or observing. 

Matter is anything that has mass (sometimes expressed as weight) and takes up space. These two characteristics combine to define matter. 

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Representations of Matter Models and Symbols COAL 1 Identify and explain the differences among observations of matter at the macroscopic, microscopic, and particulate levels. COAL 2 Define the term model as it is used in chemistry to represent pieces of matter too small to be seen. 

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