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Physical and Chemical Properties

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Rachel McCurry

on 13 January 2014

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Transcript of Physical and Chemical Properties

Matter has different physical and chemical properties. Physical and chemical properties are used to describe and classify matter.
- objects may be a single color or several colors.

- an object may have a recognizable shape, such as a sphere or a pyramid. Many objects do not have a regular shape
Physical Properties
A chemical property is a characteristic of matter than can observed only when matter is changed into a new kind of matter.
Chemical Properties
Every type of matter has its own set of physical properties. These properties determine how much matter is used.
Using Physical Properties
Physical and Chemical Properties
Ways to describe matter
- how the object feels. ex) wool has a rough texture. Glass windows are smooth.

- luster describes how the surface of an object looks when light shines on it. A mirror is very shiny, while a piece of black construction paper is not.

- describes how much matter is in a given space, or volume. Density of a substance determines whether it will float or sink in water or another liquid.
You would not use ice to make a chair because it would melt. Wood, metal, and plastic are much more useful for chairs.

Look at your desk. What physical properties make it suitable for a desk?

Your desk may have plastic legs, a wood top, and metal screws or nails to hold the pieces together. All the pieces of a desk are solid, rigid, and strong.
Example: after burning, wood becomes ash. Ash is a
different kind of matter than wood. If you leave an iron nail outside in the rain, it will get rusty. The ability to rust is another example of a chemical property.
ability to burn, explode, or
change color
Like physical properties, the chemical properties of matter affect how matter is used. Wood can be burned as fuel. The ashes of these burnt logs cannot be used as fuel.
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