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Volcano Vocab

Volcano any place where gas, ash or melted rock comes out of the ground
Magma melted rock that is found beneath the Earth's surface
Lava magma or melted rock that has reached the Earth's surface.
Vent the opening of a volcano
Viscosity (Not an important word!!!) the resutance of a liquid material to flow the viscosity of the magma determines the type of eruption that occurs Low viscosity- forms low slopes, doesn't cause large explosions High viscosity- form steep slopes and can erupt explosively
pyroclastic materials hot ash and bits of rock that may be ejected into the atmosphere they can build up and care create volcanic mountains
tectonic plates giant sections of the Earth's crust
hot spot a location where a column of extremly hot mantle rises through the Earth's layers it can melt partially to form magma that can rise to the surface and form a volcano
Created by: Jack.Burke