Week 1 What is Science

Week 1 What is Science - What is Science? Objects and...

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What is Science? Objects and Properties | Measurements | Conclusion | Practice Quiz Please note, all words in bold are rollovers that display additional text in the form of a pop-up box. Objects and Properties Objects can be any size; however, objects that are either too small or too large are difficult to conceptualize. We often have words to describe objects we encounter in our daily lives, such as chair, that invoke an image of “something to sit on.” Generally, a chair has four legs, a seat, and a backrest. Alternatively, a stool, which also meets the general description of chair, carries with it a slightly different concept, or image. Words themselves cannot always be relied upon to provide a detailed description of an object, so we use characteristics, or properties, to assist with the descriptions of many objects. Properties are the qualities, or attributes, that make up a particular object. In the case of a chair, one might ask about specific properties such as height, color, and composition in order to describe the object. A referent symbolizes a given property in terms of another, more familiar object. For example, “lemon yellow” or “candy apple red” are referents used to identify the characteristics of an object that have the color of a ripe lemon or a bright red apple. Referents aren't always exact because one person’s perception of color may be different from another’s. Other referents may include texture, sounds, and odors. Measurements
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A more accurate way to describe an object, thereby avoiding assumptions and vagueness, is to use measurements . Units are well-defined referents used in measurement, which describes “how much of what.” Standard units help us to communicate and duplicate measurements and are usually established by governments or agencies created for a purpose. There are two major systems of standard units in use today, the English system and the metric system . The metric system is used everywhere except the U.S., where both systems are used. Table 1 provides equivalents and
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This note was uploaded on 12/01/2009 for the course SCI 214 taught by Professor Bodus during the Spring '09 term at DeVry Cincinnati.

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Week 1 What is Science - What is Science? Objects and...

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