Volcanic Mountains

Volcanic Mountains are shaped when molten rock or magma deep inside the earth, erupts, and loads upon the surface. Examples of Volcanic Mountains comprise Mount St. Helens in North America and Mount Pinatubo in the Philippines.

Volcano

A volcano is a physical landform (usually a mountain) where magma (rock of the earth's interior made molten or liquid by high pressure and temperature) erupts through the outside of the planet.

In simple terms a volcano is a mountain that opens downward to a pool of molten rock underneath the surface of the earth. It is a gap in the Earth from which molten rock (magma) and gas explode.

As pressure in the molten rock builds up it wants to escape somewhere. So it forces its way up “fissures” which are narrow cracks in the earths crust. Once the magma erupts through the earth’s surface it is called lava.

Lava

Lava is fluid rock (magma) that flows out of a volcano. Fresh lava ranges from 1,300° to 2,200° F (700° to 1,200° C) in temperature and glows red hot to white burning as it flows.

Magma

Magma is liquid rock within a volcano.