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Vocab Test Unit 8

crater: A bowl-shaped opening at the top of a volcano. This is typically where tephra and lava escape from the volcano.
detect: To discover or find the existence of something.
eruption: The act of forcing out or releasing something, such as steam or magma, with violence or suddenness.
evacuate: To withdraw from or leave a place or area, especially as a protective measure.
fault: The cracks in the crust of the Earth that mark the boundary between tectonic plates.
lava: Magma that has reached the surface of the Earth.
magma: Molten rock.
magma chamber: A chamber below the Earth's surface that contains a large quantity of magma.
mantle: The layer of the Earth between the crust and the core.
molten: Made liquid by heat; melted.
shield volcano: A volcano with gentle slopes formed by successive liquid lava eruptions.
stratovolcano: A steep-sided volcano comprised of many layers of tephra, lava and other volcanic material.
tectonic plate: A piece of the Earth's crust that moves slowly over the mantle.
tephra: Any solid material ejected into the atmosphere from a volcanic eruption.
volcano: An opening in the Earth's crust through which molten lava, ash and gases are ejected.
Created by: Makennab.