VOLCANOES

A volcano is a landform (usually a mountain) where molten rock erupts through the surface of the planet. In other words, a volcano is a mountain that opens downward to a pool of molten rock (magma) below the surface of the Earth. It is a hole in the Earth from which rock and gas erupt.

Now, we talk about the terms of comprises the topic volcano. Lets see the difference between lava and magma. Magma is a liquid rock inside a volcano while lava is the magma that flows out of a volcano.

So how do volcanoes erupt? The earth's crust is made up of huge slabs called plate, which fit together like jigsaw puzzle. These plates sometimes move. Between the earth's crust and mantle is the magma, which we defined earlier. When two plates collide, one section slides on top of the other, the one beneath is pushed down. Magma then is squeezed two plates.

*FUN FACT:

           The name "volcano" has its origin from the name of Vulcan, a god of fire in Roman mythology

Source: http://www.woodlands-junior.kent.sch.uk/Homework/mountains/volcanoes.htm

checked by: Prof. Crisencio Paner