geography, chapter 1
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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| what are the layers of the earth? | The Core,Mantle, Crust.
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| whats the name of a big slab of the earths crust | plate
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| whats the name of the place where the plates meet? | plate boundry
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| what is the core made up of | mainly iron and nickel
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| what is the temperature of the core | over 4000 degrees celcius
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| what is the temperature of the mantle | up to 4000 degrees celcius
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| what state is the mantle | plastic state(like jelly)
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| what is the name of the material the mantle is made up of | magma
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| how does the magma travel in the mantle | convection currents
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| how do the convection currents move | very slowly
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| what is the crust of the earth made out of | solid rock
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| is the crust on the earth one continuos layer? | no
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| what is the crust made up of | plates
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| what sits on top of the plates | continents
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| what do the plates float on | mantle
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| what do the plates do in certain places | drag apart, separate, push together, collide, slide past
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| are the plates always moving or do they stay still | moving
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| why are the plates always moving | because they are floating on the top of the molten rock of the marble
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| what do plates cause when they collide. | folding and earthquakes
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| what is a feature associated with colliding | fold mountains
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| what is a consequence associated with plates colliding | earthquakes
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| what happens when plates collide | compression occurs at their zone of contact
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| what happens to the crust when plates collide | they buckle and arch upwards
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| what is a earthquake | shaking, rolling, sudden shock
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| where do earthquakes occur | when plates collide or slide past each other
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| what are shockwaves? | tremors which occur from the release of pressure
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| what is the focus | the place where the earthquake occurs beneath the earths surface
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| what is the epicentre | the spot on the surface directly above the focus
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| what is a ricter scale | a scale used from 1 - 10 registering the force/strength of an earthquake
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| what is a seismograph | an instrument used to measure the force of an earthquake
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| what is the san andreas fault | the boundary between the north American plate and the pacific plates
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| what are the san andreas plates causing | earthquakes
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| what happens when paltes separate? | volcanic activity
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| what are some volcanic activity features? | mid atlantic ridge, volcanic islands, volcanic mountains
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Created by:
rbowen2018
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