What are synthetic polymers used for? Objective: ASWDTAT compare the properties of metals and alloys.

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Presentation transcript:

What are synthetic polymers used for? Objective: ASWDTAT compare the properties of metals and alloys.

 Usually hard and shiny  All are solids at room temperature except mercury  Are good conductors of heat and electricity  Ductile  Malleable

 Mixture made of two or more elements that has the properties of metals  At least one of the elements is a metal.

 Are usually very different than the properties of the elements they are made from.  Gold alloy is used for jewelry (pure gold is much more malleable and soft)  Alloys are used much more than pure metals because they are generally stronger and are less reactive.

 Many are made by melting metals and mixing them together in carefully measured amounts.  STEEL Made from an iron base

 Brass  Bronze  Stainless steel  Carbon steel  Sterling silver

 Objective: ASWDTAT compare the properties of metals and alloys.  What is the difference between a metal and an alloy?