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Layers of the Earth

Layers of the Earth. Katie Borucki Caitlin Hale Lisa Ruggio Rachel Sekerak. The Crust. The outer most region of the Earth Mostly made up of basalt and granite Igneous rock Ranges from 5 km to 10 km at sea level, and 10 km to 70 km in the continental regions

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Layers of the Earth

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  1. Layers of the Earth Katie Borucki Caitlin Hale Lisa Ruggio Rachel Sekerak

  2. The Crust • The outer most region of the Earth • Mostly made up of basalt and granite • Igneous rock • Ranges from 5 km to 10 km at sea level, and 10 km to 70 km in the continental regions • The least dense of all the Earth’s layers • Temperature ranges from air temperature to 900 ºC (about 1652 ºF)

  3. The Mantle • A shell made up of dense rock • Consists of mostly oxygen, silicon, and magnesium • Can be found between 30 and 2,900 km below the Earth’s crust • Temperature ranges from 500 ºC near the crust to 4000 ºC near the core (between 932 and 7232 ºF) • Where most of the internal heat of the Earth is located

  4. The Outer Core • 1,800 - 3,200 miles (2,890-5,150 km) below the earth's surface • Consists mainly of iron, some nickel and about 10% sulfur and oxygen • The temperature in the outer core is about 4000-5000 ºC (7200 - 9032 ºF) • Since it is so hot, the outer core is liquid • The density of the outer core is between the 10g/cm³ and 12.3g/cm³ • Outer core and inner core together cause the earth's magnetism • Earth’s rotation • Outer core rotates while inner core does not and this causes the magnetism • Radiates a natural heat to the upper layers • Causes convection currents which cause the motion of tectonic plates

  5. The Inner Core • 3,200 - 3,960 miles (5,150-6,370 km) below the earth's surface • Mainly consists of iron, nickel and some lighter elements (sulfur, carbon, oxygen, silicon and potassium) • The temperature in the inner core is about 5000-6000 ºC (9032 - 10832 ºF) • Even though the inner core is extremely hot, it is solid because of high pressures • The average density of the core is about 15g/cm³

  6. Cookie Activity

  7. Works Cited “The Core.” ThinkQuest team. 30 Nov. 2006 <http://mediatheek.thinkquest.nl/ ~ll125/en/core.htm>. "The Layer of Earth." Planet Earth. ThinkQuest. 30 Nov. 2006 <http://library.thinkquest.org/ 28327/html/universe/ solar_system/planets/earth/interior/layers_of_earth.html>. "Layers of the Earth." A Teacher's Guide to the Geology of Hawaii VolcanoesNational Park. Valcano World. 30 Nov. 2006 <http://volcano.und.edu/vwdocs/vwlessons/ plate_tectonics/part1.html>. "Ohio's Academic Content Standards in Science." Ohio Resource Center forMathematics, Science, and Reading. ORC. 30 Nov. 2006 <http://ohiorc.org/content_stds/ohio_stds/ standards/?type=2&std=44&disc=2#g4>. "Structure of the Earth." Education Module. 30 Nov. 2006 <http://scign.jpl.nasa.gov/learn/ plate1.htm>. "Structure of the Earth." Wikipedia. 30 Nov. 2006 <http://en.wikipedia.org/wiki/ Layers_of_the_earth>. “Structure of the Earth.” Scign. 30 Nov. 2006 <http://scign.jpl.nasa.gov/learn/plate1.htm>.

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