information about the outside of a volcano

A volcano is a mountain with a hole where lava comes from. Parts of the volcano is lava, throat, molten magma, secondary vent, ash cloud and vent.

When a volcano is active, materials=------------------1111111111111111111111111111111111111111111111111111111111111 come out of it. The materials include lava, steam, ash and broken rock pieces.  

Vulcan is a man that is a  Roman God of Fire and when he gets angry most of the volcanoes erupt. That’s where the word volcano comes from.

There are 1,500 active volcanoes in the world. Most of these volcanoes is around the ring of fire. There are 452 volcanoes in the Ring of Fire. 75% of the Earth’s volcanoes + 90% of the Earth’s earthquakes happen here.

Volcanoes form when magma from the outer core pushes through the crust of the Earth. Once the magma is out of the crust it is called lava. A ash cloud forms when the volcano erupts and smoke rising up which is the ash cloud.

There are three different kinds of volcanoes. They are dormant, active and extinct. Dormant means they have erupted in the past but are sleeping at the moment so won’t erupt. Active volcanoes can erupt soon. Extinct volcanoes erupt a long time ago and won’t erupt again.

These are the rocks from the volcano that erupted

scoria.PumiceLava BombBasaltObsidian.

By Hiria, Vaiola, Ana and Maria.