Geography Key Words and Definitions Tectonics Topic
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Risk | show 🗑
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| show | A hazard lasting for a short period (less than a day)
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| Medium term | show 🗑
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| Long term | show 🗑
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| show | Associated with the movement of the tectonic plates in the Earth’s crust.
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| Natural hazard | show 🗑
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| Prediction | show 🗑
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| Protection and Preparation | show 🗑
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| Plate | show 🗑
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| show | Crust beneath the oceans. Mainly basalt, it is younger, heavy and dense
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| show | Less dense crust forming continents (25-90 km thick). Floats on the mantle
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| show | The centre of the Earth
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| Mantle | show 🗑
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| show | The molten rock below the Earth’s surface
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| show | The slow circular movements of molten rock in the mantle caused by the heat rising from the Earth’s crust
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| Crust | show 🗑
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| show | Where two plates meet
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| show | A line of volcanoes following the destructive plate boundaries around the sides of the Pacific Ocean
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| show | A long undersea mountain chain formed on a constructive plate boundary. (e.g. Iceland is on the Mid-Atlantic Ridge)
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| show | A long, deep valley in the ocean floor. They are formed at destructive plate boundaries
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| show | An oceanic and a continental plate are moving towards each other. The oceanic plate will sink
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| show | Area where an oceanic plate is sinking, melting and being destroyed at a destructive plate boundary
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| show | Mountains formed by the bending and buckling of rocks, where two tectonic plates are colliding
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| Sedimentary rock | show 🗑
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| show | Tectonic plate boundary where new oceanic crust forms
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| show | The place where two continental tectonic plates collide. The plates are not dense enough to sink into the mantle and therefore both crumble to form fold mountains
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| show | Two plates are sliding past each other
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| Pyroclastic flow | show 🗑
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| show | A lump of lava which is thrown high into the air when a volcano erupts
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| Active volcano | show 🗑
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| show | Impacts which develop later, such as fall in global temperatures
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| Lahar | show 🗑
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| show | Reflection of sun’s rays by particles in the atmosphere – leads to cooler temperatures
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| Short term effects | show 🗑
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| Lava | show 🗑
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| Basic lava | show 🗑
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| Acid lava | show 🗑
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| Shield volcano | show 🗑
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| show | A huge wave triggered by an earthquake
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| Aftershock | show 🗑
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| Secondary effects | show 🗑
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| show | Size of earthquakes is measured on a 9-point scale; level 2 is 10 times the size of level 1
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| Primary effects | show 🗑
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| show | The place on the Earth’s surface which is directly above the focus of an earthquake
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| show | The point below ground where an earthquake begins
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| show | These machines detect vibrations beneath the surface. Readings are passed to a seismograph
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| show | These machines measure how much the angle of the land is changing (e.g. to see if magma is welling up below)
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Created by:
sallyfizz
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