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Physical Science: 2.2 Physical Properties

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Rachel Ward

on 21 August 2014

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Transcript of Physical Science: 2.2 Physical Properties

Physical Properties
any characteristic of a material that can be observed or measured without changing the composition of a material
resistance to flow
decreases when heated
a material's ability to allow heat to flow
metals have high conductivity
the ability of a solid to be hammered without shattering
metals are malleable
which material scratches the other?
Melting Point
the temperature at which a solid turns into a liquid
example: water=0 degrees celcius
Boiling Point
the temperature at which a substance boils
example: water=100 degrees celcius
the ratio of mass to volume
used to test the purity of a substance
Using Physical Properties
Identify a material
Choose a material for a specific purpose
Separate the substances in a material
1. Decide on which property to test
2. Test on a sample of the unknown
3. Compare the results with data from known materials

Filtration: separates materials based on size
Distillation: separates substances in a solution based on their boiling points
material's ability to be stretched into a wire
how shiny an object is
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