Magma is the name given to molten material inside the earth (volcano) whereas lava is the name given to molten material which is often ejected from a volcano and then cools and solidifies.

Diagram, infographic, vector The internal structure of the planet earth. The structure of the earth's crust. Educational illustration. Model of the earth in cross section, layers of the earth's crust.

When a volcano erupts there can be lava, ash, steam or gaseous emissions. Sometimes eruptions are explosive and lava is thrown out as volcanic bombs. Hotspots are places where the magma rises up ...