A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. This list of questions and answers will help teach all about volcanoes.

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Below are the pre-made questions and answers for this Question Set. You will have an opportunity to modify, add or delete any of the questions before you create your game.

Weak spot in the crust where molten material or magma comes to surface~Volcano
A molten mixture of rock forming substances, gases and water from the mantle~Magma
Magma that comes to earths surface~Lava
Major volcanic belt that is formed by the many volcanoes that rim the pacific ocean~Ring of fire
A string of islands formed by volcanoes created by spreading boundaries~Island arc
An area where material from deep within the mantle melts forming magma which erupts through the crust to form a volcano~Hot spot
A pocket where magma collects in a volcano~Magma chamber
Long tube in volcanos which connects the magma chamber to the earths surface~Pipe
An opening where molten rock and gas leave the volcano~Vent
Area covered with lava as it pours out the volcanoes vent~Lava flow
A bowl-shaped area that forms around a volcano’s central opening~Crater
A material found in lava, formed from the elements oxygen and silicon~Silica
Thin, quick flowing lava~Pahoehoe
Thick, slow flowing lava~Aa
A hot explosive eruption of ash, cinders, bombs and gases~Pyroclastic flow
A steep, cone-shaped hill or small mountain made of ash, cinders, and bombs piled up around a volcano’s opening~Cinder cone volcano
A wide, gently sloping mountain made of layers of lava and formed by quiet eruptions~Shield volcano
A tall, cone-shaped mountain in which layers of lava alternate with layers of ash and other volcanic materials~Composite volcano
Magma that forces itself across rock layers~Dike
When magma squeezes itself through horizontal layers of rock~Sill
Magma hardens in a volcano’s pipe after an eruption~Volcanic neck
Formed when magma hardens underground; dikes, sills and volcanic necks~Igneous Intrusions

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