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Plates Voclanoes Earthqueake - junior cert

QuestionAnswer
Name the 3 layers forming the earth The Core, the Mantle (Inner + Outer) and the Crust
What is the core made up of? The Core is made of Molten Magma - red hot !
What causes the magma to move within the Mantle? Convection Currents
What causes the creation of The Mid Ocean Ridge? Two Plates moving apart from each other causes a little gap and some magma seeps out and creates a ridge
How is a volcano which erupts regularly described? Active
If a volcano erupts only infrequently, it's said to be ... Dormant
A volcano which never erupts anymore is called ... Extinct
When 2 plates collide what happens to the heavier plate? The heavier plate sinks under the lighter plate in an action known as SUBDUCTION
Name the type of current responsible for the movement of the crustal plates! Convection Currents!
What is the name given to scientists who study volcanoes? Vulcanologists
Name the rock type formed by the molten lava which flows out during a volcanic eruption Igneous
Created by: donnacha oc
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