Volcanoes

A volcano is an opening in the Earth's crust which pushes ash, molten rock or gas that is harmful to us and the environment. Volcanoes erupt in two ways. One way they erupt is when gas and thick magma build up and then give out and form a huge explosion. Another way they erupt is when there is less gas and the magma flows out. They are formed around plates or where they meet. The plates move in some way, shape or form. They are found a lot in a hot spot near the Southern islands of Asia, also known as the "Ring of Fire".