layers of planet earth

The next layer is the mantle, which is composed mainly of ferromagnesium silicates. The topmost layer is the lithosphere, which is comprised of the crust and solid portion of the upper mantle. National Geographic Kids is an exciting monthly read for planet-passionate boys and girls, aged 6-13! As time moved on, the Earth cooled down and is still cooling, as of today. The inner core is generally believed to be solid and composed primarily of iron and some nickel. The Earth is separated into layers based on mechanical properties in addition to composition. The geologic component layers of Earth are at the following depths below the surface: it would help a lot more if you could add surface features and it's composition but otherwise it would be perfect! These waves show that the Earth is made from five layers: the inner and outer core, the lower and upper mantle, and the crust. With all of these everyday familiar objects around us and with the vast sky above us, and the deep oceans beneath us, our home planet often feels quite large. I hope its that way with everyone else too. The planet Earth was formed about 4.5 billion years ago, after the collapse of the supermassive gaseous body. Earth has one natural satellite, the Moon, which orbits around Earth every 27 1/3 days. Earth's solar orbit, gravity, greenhouse effect, magnetic field and oxygen-rich atmosphere seem to combine to make Earth a water planet. Beneath this layer is a partially molten zone. The solid inner core is too hot to hold a permanent magnetic field but acts to stabilise the magnetic field generated by the liquid outer core. The mass of the Earth is approximately 6 x 1024 kg. Many places are subject to earthquakes, landslides, tsunamis, volcanic eruptions, tornadoes, sinkholes, blizzards, floods, droughts, and other calamities and disasters. livingsta (author) from United Kingdom on November 07, 2009: Thank you very much PWalker, Yes indeed I was a teacher. Also please read the article below, hope this helps !! The footprints left by Apollo astronauts will last for centuries because there is no wind on the Moon. Two large areas of polar climates separated by two rather narrow temperate zones from a wide equatorial band of tropical to subtropical climates. "This really does add weight to the idea that the moon's origin is unique, unlike any other terrestrial body -- Earth, Venus, Mars or Mercury," Hood said. The Acasta Gneiss of Northern Canada may be the oldest known exposed crustal rock. :), Hello Cat, so true. The crust has a variable thickness, being 35-70 km thick in the continents and 5-10 km thick in the ocean basins. Note: 70.8 % of the world's surface is covered by water, 29.2 % is exposed land, Land boundaries: the land boundaries in the world total 251,480 km (not counting shared boundaries twice). The continental is made up of igneous rocks, and the oceanic crust is made up of sedimentary and basalt rocks. sanchari bhattacharjee on November 11, 2012: very cool,awesome,good,informative and all the good things we can say. It starts a mere 30 kilometers (18.6 miles) beneath the surface. Earth's composition (by depth below the surface): 0 to 60 km - Lithosphere (locally varies 5-200 km), 0 to 35 km - Crust (locally varies 5-70 km). Earth is the only planet in our solar system whose surface has liquid water. However, the thermosphere would actually feel very cold to us because of the probability that these few molecules will hit our skin and transfer enough energy to cause appreciable heat is extremely low. On other planets, such as Venus, gaseous water is destroyed by solar ultraviolet radiation, and the hydrogen is ionized and blown away by the solar wind. Here are the most main information you should know about the "layers", there are 4 layers in the earth, the crust, the massive mantle, outer core and the solid inner core. Livingsta is a writer who writes about anything that fascinates, provokes or interests her, always putting forth her best effort and focus. The climate of a regional depends on many factors including the amount of sunlight it receives, its height above sea level, the shape of the land, and how close it is to oceans. Glad it was useful! I'm 11 and Im in 6th grade and i'm using this 4 a project, i read all of this and it was great i am happy i read this because it gives me enough information for my project im only 11 years old in the 5th grade thankyou for all the information, yes that's very good but i didn't read but i read all of them's comment and i am a 9 years old kid. Overall, global climate depends on the amount of energy received by the Sun and the amount of energy that is trapped in the system. livingsta (author) from United Kingdom on November 27, 2012: livingsta (author) from United Kingdom on November 20, 2012: livingsta (author) from United Kingdom on November 12, 2012: Thank you Sanchari Bhattacharjee. livingsta (author) from United Kingdom on November 22, 2009: Sorry that it was a waste of time for you. livingsta (author) from United Kingdom on August 15, 2012: livingsta (author) from United Kingdom on July 09, 2012: Lon L. Hood of the University of Arizona in Tucson and collaborators says "We knew that the moon's core was small, but we didn't know it was this small," Hood said. Large convective cells in the mantle circulate heat and may drive plate tectonic processes. I think your very cute. The amount of solar radiation, the chemistry of the atmosphere, clouds, and the biosphere all affect Earth's climate. Following the scientific revolution and the development of radiometric age dating, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old. It extends from about 15 to 50 km above the Earth's surface. :-), this is the best infor mation ever in my life . Namely, the large amount of free diatomic oxygen is maintained through solar energy by the Earth's plants, and without the plants supplying it, the oxygen in the atmosphere will over geological timescales combine with material from the surface of the Earth. The layers, troposphere, stratosphere, mesosphere, thermosphere, and the exosphere vary around the globe and in response to seasonal changes. Since the average density of the surface material is only around 3000 kg/m3, we must conclude that denser materials exist within the core of the Earth. The thin parts are oceanic crust composed of dense iron magnesium silicate rocks and underlie the ocean basins. The outer core is made of iron and nickel. Earth's magnetic field is believed to be controlled by the liquid outer core. http://www.spacedaily.com/news/water-99l.html. The Crust is the thinnest layer in the earth. With the hustle and bustle of everyday life, it is easy to forget that the human family lives on a small blue planet named Earth. The lithosphere essentially floats atop a semi-liquid layer known as the asthenosphere. The atmosphere acts as a buffer between Earth and the Sun. It is generally believed that convection in the outer core, combined with stirring caused by the Earth's rotation gives rise to the Earth's magnetic field through a process described by the dynamo theory. The crust is composed mainly of alumino-silicates. The impact generated a vapor cloud, which was mostly composed of silicate, and that became the moon. The planet's internal heat was originally generated during its accretion, and since then additional heat has continued to be generated by the decay of radioactive elements such as uranium, thorium, and potassium. Mechanically, it can be divided into lithosphere, asthenosphere, mesospheric mantle, outer core, and the inner core. However, we can also think about the climate of an entire planet. In the Earth's atmosphere, a tenuous layer of ozone within the stratosphere absorbs most of this energetic ultraviolet radiation high in the atmosphere, reducing the cracking effect. 0.023 % of the Earth's total mass. The thicker crust is continental crust which is less dense and composed of sodium potassium aluminium silicate rocks. The gravitational attraction between the Earth and Moon cause the tides on Earth. Will write more soon ! Since the equator receives more sunlight than the poles, climate varies depending on the distance from the equator. The planet's life forms are sometimes said to form a "biosphere." The total mass of the hydrosphere is about 1.4 × 1021 kg, ca. Earth has a relatively thick atmosphere composed of 78% nitrogen, 21% oxygen, and 1% argon, plus traces of other gasses including carbon dioxide and water vapour. The Moon's top layer is a rocky solid, perhaps 800 km thick. Without some form of a greenhouse effect, Earth's water would freeze. The structure of the Moon's interior is more difficult to study. This allows total eclipses as well as annular eclipses to occur on Earth. Although it is not known for certain, many lunar geologists believe the Moon may have a small iron core, even though the Moon has no magnetic field. livingsta (author) from United Kingdom on January 21, 2013: Thank you Miss Cool, I am glad it helped! Were you a teacher in another life? This is one hypothesis explains why Venus has no water. The lithosphere is divided into many plates that move in relation to each other due to tectonic forces. The outermost layer of the Earth is the crust. This effect is slow but inexorable. Love your hubs for kids. Will bookmark this for my kids. livingsta (author) from United Kingdom on March 30, 2012: Thank you for the appreciation JP, am glad it is useful ! Here in the mesosphere, the atmosphere is very rarefied nevertheless thick enough to slow down meteors hurtling into the atmosphere, where they burn up, leaving fiery trails in the night sky. Modern geologists and geophysicists accept that the age of the Earth is around 4.54 billion years (4.54 × 109 years ± 1%). The Moon does not possess any atmosphere, so there is no weather as we are used to on Earth. The ozone, too, can only be produced in an atmosphere with a large amount of free diatomic oxygen, and so also is dependent on the biosphere. While there are only two basic types of regions on the Moon's surface, there are many interesting surface features such as craters, mountain ranges, riles, and lava plains.

Benefit Foundation Uk, Ac Rebellion Ottoman Connection, The Power Station - We Fight For Love, Linette Candy Reading Pa, Dark Purple Marble Background, Northeastern University Notable Alumni, Bible Dedication Message, Simple Truth Almond Milk Ingredients, No 7 Foundation Samples, White Swivel Chair, Redbox Return Time Grace Period, The Triangle Movie 2016, Assassin's Creed 3 Special Iron Ingot Not Showing Up, American Furniture Museum, 23cm Cake Tin In Inches, Good Suburbs To Live In Melbourne, Lower Back Pain Nausea Fatigue Dizziness, Princess Alexandra Hospital Day Surgery Unit, John 6:51-58 Catholic Commentary, Paneer Recipes In Malayalam Veena's Curryworld, Create Custom Qos Centurylink, Beef Kare-kare Recipe, Abdominal Muscle Anatomy Female, Jackfruit Benefits For Diabetes, Fetchr Ship Tracking,