How+are+volcanoes+formed?

How are Volcanoes Formed? media type="custom" key="9775460"

How Are Volcanoes Formed? Did you know that 38.6 of the world are full of volcanoes? That is because our world is made of many layers of rock so volcanoes are formed by cracks and holes that poke through the earth’s crust. When a volcano is formed it’s magma pushes up the rocks and the rocks form into a triangle and then makes a volcano. Volcanoes are mountains filled with magma, which is hot material from the core of the earth. Tectonic plates that move under the ground mostly form volcanoes. They are two of them in one area and they come together to collide and rise up to make magma. When volcanoes are formed, they are 50 to 100 miles deep. Magma rises and forms into new islands. When magma hits the air, it becomes lave. When the lava is cooled, it turns into hard solid rocks. The magma under the volcano is more than 3000 degrees. Volcanoes are not just formed by tectonic plates. The volcanoes may also form by tectonic plates. Things called mantle plums may also form them. These mantle plums cause volcanoes to grow slower. Magma keeps building a volcano to form. Although the layers are sot, it is made of solid materials.themost active volcanoes are in the centers of the earth with the hotspots. Since they are more than 1 third of volcanoes on this earth, when you are traveling there might be one near you!