A volcano is a mountain.

Inside every volcano there is a deep hole and it goes deep down inside the Earth.

An active volcano erupted and can erupt again:Kilauea is an active volcano in Hawaii. This volcano is more active than any other volcano in the word. Arenal is an active volcano in Costa Rica. Tourists come to see the volcano at night.

The underwater volcanoes can grow so big that islands form.The Galapagos Islands are volcanic islands. They are near the coast of Ecuador. Mauna Loa in Hawaii is bigger than any other volcano in the world. It is 120 kilometres long.

Vesuvius is an extinct volcano in Italy. It is a very famous volcano because there was a terrible eruption.One afternoon the people from Pompeii heard a loud noise. They looked up and saw a cloud of ash.People ran out of their houses, but they could not breathe. Thousands of people were dead.People forgot about Pompeii for 1,500 years. But in 1595, people who were digging a well found some old ruins.They found streets, shops and fine houses.

It is in Sicily ( Italy ). It is an active volcano. Mount Etna erupts every few years, the biggest eruption was in 2002-2003. A huge column of ash could easily be seen from the space and Libya.

It is in Canary Islands (Spain). It's an active volcano. The last eruption was in 1,909.

It is in Washington. Is an active volcano.It erupted in 1980 and 57 people were killed. There was an earthquake. At the begginning it was 2,950 m and after the eruption 2,550 m high.