Lava.
The molten rock that comes out of a volcano is called a magma.
Lava is melted rock that comes from the volcano.
The melted rock coming from a volcano is called lava.
lava
volcano
Extrusive igneous rock.
Pumice is a solid material; it is not melted although it used to be melted rock when it was originally formed by a volcano.
Molten rock collects in a magma chamber beneath the volcano.
Magma(or lava if it is already above or out of the volcano
An opening in the Earth's crust where melted rock reaches the surface is called a volcano.
Lava.
Lava.