Convection.
When the molten rock is actually flowing on the earth, it is called lava. When it is contained, such as in a volcano, it is called magma.
The molten rock material that flows over the earth's surface is known as magma. This is what will be emitted from a volcanic eruption.
Ingenious rocks form when molten material under the earths surface cools. Not only does the molten cool it does not harden.
Lava
Igneous rock that flowed out of the surface if lava; lava blown out of explosive eruptions is Volcanic Ash, or Tuff.
it is called magma.
magma
it is called magma.
It is called magma
molten rock called lava when it is on the earths surface and magma when it is beaneath the surface
Molten rock material on Earth's surface is called lava. When under Earth's surface it's called magma
When the molten rock is actually flowing on the earth, it is called lava. When it is contained, such as in a volcano, it is called magma.
lava
lava
The molten rock material that flows over the earth's surface is known as magma. This is what will be emitted from a volcanic eruption.
the mantle
pressure from the heat under the earths surface