Changes

'''Iron''' is a [[metal]].  

'''Iron''' (Fe) is a [[ferromagnetic]] [[metal]].  

It can be dug up straight out of the ground and used without much trouble. This allowed early man to discover it early, during the [[Iron Age]] in fact.

The technology to smelt iron was discovered in the near east sometime around 1150BC. Iron is much stronger than [[bronze]] and was used for weapons.

Iron [[weapon]]s were far better than ones made of softer metals, like [[bronze]]. A [[sword|swordsman]] with an iron sword could cut a bronze sword in half if his enemy tried to block him with it.

Iron was used in [[construction]] but has since been replaced by [[steel]]. The [[Eiffel Tower]] and [[Golden Gate Bridge]] are both made of iron.

Iron was also used in [[construction]]. The [[Eiffel Tower]] and [[Golden Gate Bridge]] are both made of iron. The strength of iron meant that [[engineers]] could build much bigger structures with it than with stone.

Iron will oxidize at when in contact with water. These iron oxides are commonly called [[rust]].

When iron [[corrosion|corrodes]] it is called [[rust]]. Corrosion on other metals is not called rust.

Iron is also a component of [[red blood cell]]s in the form of [[hemoglobin]].

Iron is also a component of [[red blood cell]]s in the form of [[hemoglobin]].