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The molten rock under a volcano, called magma, is under enormous pressure due to the amount of rock on top of it. In many cases there is gas trapped in the magma in a dissolved state. When the magma is exposed to the much lower pressure at or near the surface the gases come out of solution and form bubbles that expand very rapidly, creating an explosion that can pulverize the rock.

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Q: How do volcanoes explode lava?
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Related questions

What are volanoes?

volcanoes are mountthat explode lava


Defention of extinct volcano?

the definition for volcanoes is when the lava gets to hot it will explode and cause a big destruption


Does a volcano have to explode?

No. While eruptions can be explosive, they often are not. Many volcanoes will pour out lava relatively gently.


Do volcanoes need lava to be known as actual volcanoes?

No, volcanoes do not need lava to be volcanoes.


Can lava make volcanoes?

NO, volcanoes make lava.


What type of explosion does a shield volcano have?

Generally shield volcanoes do not explode. They erupt in a non-explosive fashion, fountaining or oozing lava.


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A large ammount of lava and ash comes oput of volcanos. also some gas comes with it


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Volcanoes are created by layers of ash and lava eruptions


How much lava comes out of a volcanoes?

a lot of lava comes out of volcanoes .


Can your lava lamp explode?

Yes, it can explode. It can explode when you leave it on for longer than the instructions say.


Molten material that flows from volcanoes?

lava.


The magma released from volcanoes is?

lava