Igneous Rock
Volcanoes spew lava. Lava is molten rock. Molten rock is liquid.
Magma is molten rock under ground whereas molten rock that flows out of the ground is lava and igneous rock is solid when the lava or magma hardens.
The molten lava solidifies into solid rock on cooling.
The mantle is the source of molten rock. This molten material can, if the tectonics are right, penetrate up through the solid outer mantle and the crust to deliver lava, which is molten rock (magma) that has reached the surface of the earth.
When you have a volcano the molten rock is called Magma when it is inside the volcano but when it gets out of the volcano it changes name to Lava.
Molten rock may exist either on the surface or underground. It is only considered lava when it is at the surface. Underground molten rock is called magma.
Molten rock is also called lava.:)
Lava is a molten rock from a volcano, and is rock.
Lava is molten rock on earth's surface.
Lava is hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
Lava is molten rock.
Magma or lavaLava is molten rock. Magma is a mixture of molten rock and solids.