steffi01
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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| crust | the outer layer of the earth,it consists of oceanic and continental crust.
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| core | is in the inner layer of the earth, consists of iron and nickel
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| mantle | makes up over 75% of earths volume, consists of several layers of rock .
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| lithosphere | is the name given to the crust and upper part of the mantle.
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| asthenosphere | is the region just below the lithosphere.
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| plates | are the large ridged sections that the lithosphere is divided up into.
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| convection currents | are in the mantle and are the main cause of plate movements
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| subduction | when one plate sinks below the other
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| fault line | is the line along which the plates slide
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| extinct volcano | are volcanos that haven't erupted in historical times
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| active volcano | are volcanos that are currently erupting or showing signs of unrest
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| dormant volcanos | are volcanos that haven't erupted in at least 600 years and are now quiet but have high probabilities that they'll erupt again
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| vent | the passage that goes up through a volcano cone to allow lava to erupt onto the surface
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| crater | is a steep sided depression found at the top of a volcano
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| basic lava | is the lava that is high in silica, causes it to be runny
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| acidic lava | is the lava low in silica, causes it not to be runny
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| lahar | is when ash and dust gets mixed with rain water or melted snow during a volcanic eruption
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| intrusive | features inside the earths curst
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| extrusive | features on the earths surface
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| fissure | is a long crack on the earths surface
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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steffi01
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