larva
Molten Metal is the compilation album, the album by Queen and the album track on We Will Rock You
molten lava is a hot likquid from a volcano
the outer core. the last answer was the inner core.. but im sorry to tell them that im doing this section in school currently and the OUTER core is made of molten metal. the inner is solid metal.
The molds should be sand coated insides and a hole upside mold then introduce the molten metal.