- A volcano is made up of long pipes called vents. These vents are connected to a hole deep inside the Earth called a chamber. In the chamber is magma that can be as hot as 2,192 degrees fahrenheit. The magma chamber sends up the magma which causes lava to flow from the volcano. The fissure volcano is a crack in the Earth’s surface. It can flow a long way from the volcano. It turns into little rivers. Volcanoes in the Hawaiian islands have runny lava. The lava flows gently to form a shield volcano. A dome volcano has a single pipe from which magma erupts. A volcano is really made up from the crust of the Earth.
Facts from Volcanoes by Simon Adams
