Difference Between Magma And Lava Quizlet. Magma and lava both refer to molten rock from which igneous rocks form. It usually has a large amount of dissolved gas.
Lava temperature is slightly less hot and varies between 1300 to 2200 F. However magma refers to molten rock below Earths surface and lava refers to molten rock at the surface. Mar 23 2020 The magma takes a longer period of time to cool down while the lava cools down fastly.
Lava cools much faster than magma which may lead to part of the melt being unable to crystallize and thus becoming glass.
High viscosity magma is very thick and pasty. Low Viscosity magma is thin and runny with little dissolved gas. It usually erupts violently. As a result sometimes lava crystalizes into glass particles.
