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Volcanoes

Key vocabulary to support teaching of volcanoes

TermDefinition
Lava The name given to liquid magma when it reaches the surface of the earth.
Magma Molten rock in the mantle.
Pyroclastic Flow Fast moving current of hot gas and rock ejected explosively from a volcano and moving at great speed.
Richter Scale Measures the strength (magnitude) of the volcano.
Vent The opening through which lava flows in a volcano.
Volcanic Bombs A lump of lava thrown out by a volcano.
Volcano An opening in the earth's crust from which molten lava, rock fragments, ash, gases and dust are ejected.
Created by: MJParker
Popular Geography sets

 

 



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