BOY:No. CURIOUS CAT:Let's find out how it all begins. CURIOUS CAT:'The tins are made of steel, and steel is made from special rocks underground called iron ore. Iron is a metal, and it's found in ...

Fran Scott describes some of the uses of steel and then finds out how it is made from iron that has been produced in a blast furnace. The carbon content is reduced by blasting heated oxygen onto ...