Do Metals Expand Contract When Heated?

Answer

Metals expand when heated. This generally occurs in metals because the atoms of the metal start to move faster when they have more kinetic energy increases with each atom taking up more space due to its movement leading to expansion. Metals contract when they are cooled.
Q&A Related to "Do Metals Expand Contract When Heated?"
Bizmuth is a heavy metal that expands on cooling and contracts on heating. it is used for making lead free ammunition, especially for shotgun rounds and airgun pellets as it is considered
http://wiki.answers.com/Q/Which_metal_expands_on_c...
There is none as far as I know. But some compounds do, see below. Invar, an alloy has the lowest value of all metals. . wikipedia: Common grades of Invar have a coefficient of thermal
http://answers.yahoo.com/question/index?qid=201303...
Rubber bands are polymers, which means that they are long molecules with a primary carbon-chain "backbone. These polymers are entangled like strings, noodles, or tied shoelaces
http://www.ehow.com/facts_7416865_do-contract-heat...
Most metal usually expands when heated because the atoms of the metal start to move
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