Keywords plates
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| Inner core | The centre of the earth
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| Crust | The outside layer of the earth
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| Lava | Magma that has reached the outside of the earths surface
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| Convection currents | Currents that move in circular motion in the mantle that help move plates
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| Plates | Pieces of the earths surface that make up the earth (like a puzzle)
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| Plate tectonics | The study of plates
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| Continental plates | Plates with land on top of them
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| Oceanic plates | Plates that have oceans on top of them
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| Plate Boundary | When an oceanic and continental plate meet
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| Eurasian plate | The plate Ireland sits on
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| Pangea | A huge, historic land mass that used to cover the earths surface
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| Divergent plates | Plates that separate/divide
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| Convergent plates | Plates that collide
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| Transform plates | Plates that slide past each other (traffic)
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| Mid Ocean Ridge | An underwater mountain range
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| Volcanic islands | Mountains on the seabed rise up to the surface of the ocean
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| Crater | The opening hole on top of a volcano
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| Magma chamber | Where magma is stored in a volcano
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| Vent | The passage in a volcano that joins the magma chamber and crater
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| Active volcano | A volcano that erupts regularly
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| Dormant volcano | A volcano that hasn’t erupted in a while but could erupt again
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| Extinct | The volcano has not erupted in thousands of years
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| Earthquake | A sudden movement or trembling of the earths surface
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| Focus | The beginning point of an earthquake
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| Seismic waves | The waves that cause trembling from the focus point of an earthquake
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| Epicentre | The centre of the earthquake on the earths surface
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| Aftershock | An earthquake taking place after another earthquake
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| Seismograph | An instrument that helps us measure an earthquake
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| Richter scale | An instrument that shows the strength of an earthquake (magnitude)
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| Tsunami | Huge waves caused by earthquakes or volcanic eruptions taking place under the sea
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| Short term response | Something that has to be done immediately after a disaster
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| Long term response | Something that will take a long time to do after a disaster
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| Fold Mountains | Mountains that have been formed by convergent plates
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| Anticline | In mountain ranges anticline is the rock that goes upwards
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| Syncline | In mountain ranges syncline is the rock that goes downwards
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Created by:
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