How Stuff Works: BBC: The British History Victorians: The Blast Furnace Animation

http://science.howstuffworks.com/framed.htm?parent=iron.htm&url=http:/...

This website provides a visualization of how a blast furnace actually works. It shows step by step what each part of the furnace does in order to change the iron ore into molten iron. There is also an activity that allows the student to use their knowledge and memories to create their own furnace. It offers a great visual representation of the iron smelting process.

Referenced in:
Digging, Smelting and Forging: But Why in Pennsylvania?
Pennsylvania's Iron Furnaces: Forging the Industrialization of the Nation