Introduction to volcanoes

A volcano is an opening in the earth’s crust. Inside the earth there is a thing called magma. It is a very hot liquid. It is made of crystals, volcanic glass, and bubbles made of volcanic gases. A volcano lets the magma blast outside of the earth. Magma is stored on the inside of the volcano. Magma keeps adding to itself on the inside of the volcano. When there is enough pressure on the inside of the volcano, it explodes.


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This is a volcano