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# Physical Properties

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### Physical Properties

1. 1. Physical Properties Observe, Describe, and Measure
2. 2. What are physical properties? <ul><li>A physical property is a property or characteristic of and object or substance that can be observed, described, and measured without changing the matter. </li></ul>
3. 3. Common Physical Properties <ul><li>Length: how long or tall an object is. </li></ul><ul><li>Mass: the amount of matter in an object. </li></ul><ul><li>Area: the amount of surface inside a closed boundary. </li></ul><ul><li>Perimeter: the distance around an object. </li></ul><ul><li>Texture: how an object feels. </li></ul><ul><li>Taste </li></ul><ul><li>Odor </li></ul><ul><li>Color </li></ul><ul><li>Elasticity: the elasticity of an object is its ability to return to normal shape and size </li></ul><ul><li>Density: A measure of the amount of matter in a given volume. Density does not change with the amount of matter measured. </li></ul>
4. 4. How To Observe/Measure Physical Properties <ul><li>Use a ruler or a tape measure to measure length. Units include feet, inches, meters, centimeters, ect. </li></ul><ul><li>Use a scale to measure mass. Units include grams, kilograms, ect. </li></ul><ul><li>To measure area of a rectangle, measure the lengths of two adjacent sides and multiply them together. Units include feet 2 (or square feet), inches 2 , meters 2 , centimeters 2 , ect. </li></ul>
5. 5. How To Observe/Measure Physical Properties, cont’d <ul><li>To measure perimeter, measure around an object. </li></ul><ul><li>To observe texture, feel the object with your hands. </li></ul><ul><li>To observe elasticity, try to bend or stretch the object to see if it returns to it’s normal shape and size. </li></ul>
6. 6. How are Physical Properties Used? <ul><li>Physical properties are used to identify and classify substances and materials. </li></ul><ul><li>Scientists VERY CAREFULLY observe, describe, and measure substances and materials in order to identify them or classify them. </li></ul>
7. 7. Amounts and Physical Properties <ul><li>Some physical properties stay the same no matter how much material/substance is present. </li></ul><ul><ul><li>This includes taste, odor, color, texture, and elasticity. </li></ul></ul><ul><li>Other properties change when the amount of material/substance changes. </li></ul><ul><ul><li>This includes length, mass, area, and perimeter. </li></ul></ul>