1.   It Marked the point where the solid rock of the mantle changed into molten iron.

2.   Molten iron is poured into huge moulds and allowed to cool.

3.   The Iron Rock is a core of molten iron vomited from the bowels of the earth during some incalculably ancient upheaval.

4.   Blast furnaces make molten iron, the first step in steelmaking.

5.   Coke is baked coal, which is used as fuel for blast furnaces that make molten iron.

6.   It sits in a sea of molten iron, known as the outer core, that seethes with hot currents.

7.   It was a place where men worked for piddling wages in sooty overalls pouring molten iron into molds for casting pipes that were sold all over the world.

8.   The outer core is molten iron.

9.   There the molten iron would be separated from its ore.

10.   A vat of molten iron exploded at a factory in western Japan on Sunday, killing three workers and severely burning another, police said.