it is called a volcanic eruption
Molten rock on the Earth's surface is called lava.
Molten rock is called magma when it is inside the earth. Its called lava when it reaches the Earth's surface.
Molten rock that pours out of a volcano is called lava. Lava is the liquid rock that flows from a volcano during an eruption.
Molten rock that reaches the Earth's surface is called lava.
Molten rock on the surface of the Earth is called lava.
Molten rock deep beneath the Earth's crust is called magma.
Molten rock from under the surface (called 'magma') that reaches the Earth's surface and flows out is is called 'lava'.
Molten material below the surface of the Earth is called magma. It consists of molten rock, gases, and suspended solids. Magma can eventually erupt onto the Earth's surface as lava through volcanic activity.
The molten rock that is found inside the earth is usually simply called magma. It becomes lava after it leaves the volcano at the surface of the earth.
The molten rock is magma.
Molten rock below the surface of the Earth is known as magma. After it erupts from a volcano it is called lava.
Molten rock above the Earth's surface is called lava. When molten rock, or magma, erupts onto the surface of the Earth through volcanic activity, it is known as lava. Lava can flow or explode from a volcano during an eruption.