d hot lava pours down the sides of the mountains. Later on, the lava cools and becomes hard rock.
VI. Read this text, work in groups and fill in the table. The information that is new for you should be written in the column titled "I dont know". Interesting facts that you know about volcanoes should be written in the second column.
Volcanoes
When a volcano erupts hot gases and liquid rock come up to the surface from inside the earth. The material sometimes slides down mountains as lava or is hurled into the air as ash or small rocks. Volcanoes often destroy the land around them completely. Gases from eruptions can keep sunlight from reaching the earth and darken the sky for years. Volcanoes also build up new islands and mountains and make the soil a good place for crops to grow.
Where are volcanoes located?
The earths crust is made up of sections or plates. They always move and at places where they get together they collide or slide on top of each other.
90 of all volcanoes are located around the edges of the Pacific Ocean. The Pacific coasts of Asia, North America and South America form a big circle, which is called the Ring of Fire.
Sometimes volcanoes are found in places where plates move away from each other. In the Atlantic Ocean, for example, a long range of underwater mountains forms the border between two plates. Iceland is a gigantic volcanic island that has come up to the surface from this mountain range.
Other volcanoes form in the centre of plates, where magma comes up from deep inside the earth and breaks through the crust. Such areas, like the Hawaiian Islands, are called hot spots.
How volcanoes are formed
Hot liquid rock, called magma, makes up the inner part of the earth. When it rises to the sur
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