• Home   /  
  • Archive by category "1"

Essay About The Earths Layers

The Layers Of The Earth Essay

There are many different layers within the Earth. The core is at center of the Earth.

The Earth's core takes up sixteen percent of Earth's volume, containing thirty-three percent of its Mass ..Pressure rises steadily inside the earth because of the weight of overlying rock. Therefore ,the Pressure at the outer boundary of the core reaches 1.37 million atmospheres, 3.7 million Atmospheres. The core is made mostly of iron and nickel and possibly smaller amounts of lighter elements including sulfur and oxygen. The core is about 4,400 miles in diameter of Earth and about the size of Mars. The outmost 1400 miles of the core is liquid. Geologist believe the innermost part of the core about 1600 miles, is made of similar material as the outer core, but it is solid. The inner core is about 4/5 as big as Earth's moon. It is estimated that the temperature in the deep interior is in fact thought to be about 5400 degrees Fahrenheit (3000 degrees Celsius) at the core-mantle boundary, and at the center perhaps 7300 degrees Fahrenheit (4000 degrees Celsius).

Beneath the crust, extending down about 1800 miles is a thick layer called the mantle Earth's crust floats on the mantle much as a board floats in water. The mantle makes up 83% of Earth's volume. It is about 1800 miles thick and the deeper you go the more dense and heavy the Rocks from which it is made become. The mantle is composed mostly of silicon, oxygen, iron, and Magnesium. The temperature at the top of the mantle is less than 1300 degrees Fahrenheit(700 Degrees Celsius) under continental crust .At the bottom, where the mantle contacts Earth's outer Core, the temperature is roughly 7000 degrees Fahrenheit (4000 degrees Celsius). Mantle rock Is hotter than about 2400 degrees Fahrenheit (1300 degrees Celsius) can flow much as a glacier creeps down a mountain valley.

The crust is the outermost layer of rocks making up the solid Earth. Most of the Crust can be classified either as 'continental' or 'oceanic'. These two types of crust differ in their average age, composition, thickness and mode of origin. Continental crust is on average older more silica-rich and thicker than oceanic crust. The oldest parts of the continental crust, known as 'shields' or 'cratons' include some rocks that are nearly four billion years old. Most of the rest of the continental crust consists of the roots of mountain belts, known as 'orogens' formed at different stages in Earth's history. The average thickness of the continental crust is about 40km , but beneath parts of the Andes and the Himalayas mountain ranges the crust is more than 70 km thick.

Oceanic crust underlies most of the two-thirds of the Earths surface which is covered by the oceans.

It has a remarkably uniform composition and thickness. The ocean...

Loading: Checking Spelling


Read more

The Open System Interconection Seven Layers

1254 words - 5 pages Intro The Open Systems Interconnection (OSI) reference model has significantly influenced the development of internet protocol we use today. Created in the 1980’s by the International Standards Organization (ISO), a multinational body dedicated to worldwide agreement on international standards, this reference model has defined the entire network communication process into seven structured layers. In ascending order these layers are the physical,...

The Execution of Mother Earth Essay

764 words - 3 pages It is the year 5019 and the new era of driving has arrived using magneto plates designed by Michael Ranganzo. He explained that the Earth continuously emits electromagnetic forces into space and these magneto plates repel the force, making the plates go up creating reality for man kind's dream of flying cars.Instantly all countries have gouged their money on all the magnetic plates, and have permanently cancelled all their contracts...

Amazing Atmosphere of the Earth

603 words - 2 pages The Earth’s atmosphere is divided up into the Troposphere, Stratosphere, Mesosphere and the Thermosphere. The Earth’s ozone layer is located in the lower stratosphere, which begins about 6 to 10 miles above the Earth’s surface and expands up to about 30 miles. The ozone layer shields all life on earth and protects it from the dangerous radiation of the sun. UV Radiation The ozone layer acts as a safeguard against the harmful radiation of the sun....

Geology: The Study of the Earth

1008 words - 4 pages Erosion occurs when wind or water blow/wash away the topmost fertile layer of soil. As fertile land loses its fertility due to soil erosion, it is difficult to grow crops on eroded lands. Apart from affecting crops, erosion also weakens land, causing buildings to collapse. Soil erosion can be prevented by planting windbreaks. Windbreaks are lines of planted bushes and plants that hold soil firmly with their roots and prevent it from being washed...

"The Good Earth", The Oppression of Women

2547 words - 10 pages "In fact, the birth of female child was considered to be both a time of sadness and a time of an evil omen."(Lotus 54) A woman is still considered to be a weaker gender in today's society and the inequality between male and female perpetuates. In fact, this situation is quite prevalent in Pearl S.Buck's The Good...

The Negative Side of Rare Earth Metals

1312 words - 5 pages The United States has depended on third world countries for many years to supply them with many of the everyday items they use, but it is seldom thought of all the health conditions people who work in this environment endure, what would happen if these third world countries stopped supplying them, or what would happen if they took advantage of all the power they have given them. In the article “Rare Earth Plant Ready, But in a Glut,” by Keith...

Compare: Norma Rae & Salt of the Earth

1061 words - 4 pages Norma Rae: Mike Hoffman wrote, "Resisting deportment from the mill where she and her family have worked all their lives, Field's character scrawls the word union on a board and scrambles onto a table. For almost three minutes she stands there -- scared but resolute, holding her declaration aloft -- while one by one the workers switch off their machines, reducing the factory...

The Importance of Plants on Planet Earth

1146 words - 5 pages The Importance of Plants on Planet Earth Plants As We See Them --------------------- Plants are all around us, renowned for their aesthetic appeal; their colours and structures lend themselves to decoration. Plants are used in celebrations and commiseration's and are often celebrated in their own right- the annual Michigan potato festival being a good example. Plants are associated with national identity. The...

The Prevention of a New Earth Day

1687 words - 7 pages For the longest time environmentalism was considered to be an after-thought in American politics. The words recycling, carpooling, and clean energy were non-existent in our vocabulary. Today however, the condition of the environment is of up most importance. Even though the new millennium has brought increased environmental awareness, our planet is still in dire condition and is on the verge of being uninhabitable. Although new government and...

Exodus Earth: Survival Of The Human Species

994 words - 4 pages I recently learned that in five billion years our star, the sun, will exhaust its abundant supply of hydrogen and helium; this creates a problem for the species of humanity. When the sun has consumed all resources, it will begin to fuse hydrogen into helium and fusion will produce heavier elements, thus growing in size until it engulfs most of the inner planets. Life...

The Importance of Water on Earth

935 words - 4 pages All matter is made up of atoms and water is no exception. In order to shape molecules atoms either bond, or fuse together. To shape a water molecule, two atoms of hydrogen must bond to a single atom of oxygen. This results with the chemical composition of H2O. Water is an extremely unique substance because of its numerous special properties, the process of structuring a water molecule, and how they all act together. When a single oxygen atom is...

Layers of the Earth
*The first layer of earth is earth’s crust. It is the thinnest outermost layer lies is solid rock.  
*Earth’s Crust is five times thicker under the continents than it is under the ocean.                     *Earth’s Mantle is a thick layer that lies between the Crust and the outer core.                                      
*Earth’s Mantle is a thick layer that lies between the Crust and the outer core.

*The lithosphere is basically the layer of the Earth that is strong enough to flex rather than flow. Its top is easy to see—it's at the Earth's surface—but the base of the lithosphere is a transition rather than a sharp boundary.
* The lithosphere is the brittle outer layer of the solid Earth. The plates of plate tectonics are segments of the lithosphere.
* The asthenosphere is thought to extend from about 60 mi (100 km) to about 450 mi (700 km) below the Earth’s surface. *Zone much hotter and more fluid than the lithosphere. The asthenosphere is thought to extend from about 60 mi (100 km) to about 450 mi (700 km) below the Earth’s surface.
*The innermost of Earth’s layers is the core, which extends to the center of Earth.
*Outer Core consisting mostly of Molten, Iron, this is Earth’s only liquid layer.
*The temperature of the outer core is from 4400 degrees C at its upper boundary and 6100 degrees C at its lower boundary.
* Inner core Pressure keeps this super- hot metallic region in a solid state.                  
*The temperature in the inner core is about 4000 to 7000 degrees   . Because of the high pressure, the core is solid. The average density of the core is about 15g/cm3.

Show More

One thought on “Essay About The Earths Layers

Leave a comment

L'indirizzo email non verrà pubblicato. I campi obbligatori sono contrassegnati *