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28 Cards in this Set
- Front
- Back
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What is the center layer of the earth called?
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Inner Core
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What is the inner core made of?
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Iron and nickel
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How far is the center of the earth from the crust?
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Over 6,600km (about 3,600 miles)
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Is the inner core solid or liquid form?
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Solid
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How hot does the inner core get at the center of the earth?
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Over 7,000 degrees Celsius
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About how thick is the inner core?
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About 800 miles
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What is the next layer outside of the inner core called?
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Outer Core
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What is the Outer Core made of?
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Iron and nickel
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Is the outer core solid or liquid form?
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Liquid
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About how thick is the outer core?
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About 1,400 miles
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Why is the inner core solid and outer core liquid
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There is more heat and pressure in the center, making the inner core a solid.
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What is the layer outside of the outer core called?
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Mantle
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What is the mantle made of?
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Rock
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How thick is the mantle?
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About 1,800 miles
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What forms the lithosphere?
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The top of the mantle and the crust above it
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What is the range of heat found at the mantle?
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360 - 2,500 degrees Celsius
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Since the rock in the mantle is under extreme heat and pressure, what strange behavior do you see?
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Rocks moving and bending like liquids, even though rock is solid.
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What is the relationship between convection currents and the way the rock acts in the mantle?
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The rock is always moving and bending from the convection currents. (cool rock sinks, hot rock rises)
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What is the thinnest part of the earth's layers called?
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Crust
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How thick is the crust?
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5 - 25 miles
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Can you identfy the two parts of the earths crust? _________ crust (land) and ________ crust (ocean
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Continental crust and oceanic crust
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Where is the continental crust found?
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Land / Continents
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Where is the oceanic crust found?
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Under the Ocean
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What is the oceanic crust made of?
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Basalt
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What is the Continental crust made of?
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Mostly granite.
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Three parts of Continental crust
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Shelf, slope, rise
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Does Continental crust end at the ocean?
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No
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The Continental ______ is the start of the ________ crust
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The Continental RISE is the start of the OCEANIC crust
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