The Earth Essay, Research Paper
Did u know that our planet, Earth wasn?t always thought of as a planet? Until the sixteenth century when Capernicus figured out that the Earth was another planet, which revolved around the sun, Greek astronomers thought the Earth was the center of the solar system. Also Earth is the only planet that its name didn?t come from Greek/Roman mythology.
When earth was first discovered, astronomers were only able to study it with out spacecraft. It was not until the twentieth century that we had maps of the entire planet. Pictures taken of the planet are very important, not only because they aid in weather predictions, but they are also very beautiful.
The Earth is divided into seven layers: the crust, upper mantle, transition region, lower mantle, D? layer, outer core, and inner core. ?The crust varies considerably in thickness; it is thinner under the oceans, and thicker under the continents?. (Arnett1) The inner core and crust are solid, and the outer core and mantel layers are plastic or semi-fluid. Most of Earth?s mass is in its mantle and the rest is in its core.
Most of the core is made of iron, but there may be lighter elements in it too. Temperatures at the center of the core can be as high as 7500K, which is hotter than the surface of the sun.
?Unlike the other rocky planets, Earth?s crust is divided into several separate plates, which float around independently on top of the hot mantle below?. (Arnett1) This is called the plate tectonics theory. This is created by two processes. The first is spreading which occurs when two plates move away form each other and magma gets in, creating a new crust. The second is subduction, which is the opposite. When this happens two plates collide and one ends up being destroyed in the mantle. There are eight major plates: The North American Plate, South American Plate, Antarctic Plate, Eurasian Plate, African Plate, Indian-Australian Plate, Nazca Plate, and Pacific Plate. Other than these plates are about twenty small plates.
The surface of the Earth is about 4.5 ~ 4.6 billion years old, although the oldest rocks are about 4 billion years old. This is said to be rare because they are older then 3 billion years old.
Water makes up 71 percent of the Earth?s surface. Earth is also the only planet that can have water as a liquid on its surface. Water is very important on Earth because we need it to live, and without it we would be non-existent.
The Earth?s atmosphere is made up mostly of nitrogen and oxygen, but also has argon, carbon dioxide, and water. The reason there isn?t as much carbon dioxide in the Earth today is because it has turned into carbonate rocks, was dissolved into the oceans, and consumed by living plants. The carbon dioxide that remains is very important for the Earth?s surface temperature via the greenhouse effect. ?The greenhouse effect raised the average surface temperature about 35 degrees C above what it would otherwise be (form a frigid -21C to a comfortable +14C); without it the oceans would freeze and life as we know would be impossible?. (Arnett1)
The free oxygen on Earth is outstanding. Oxygen is good because under normal circumstances it could combine in a quick manner with other elements. If we were not in existence then free oxygen wouldn?t be either.
The electric currents in the core produce Earth?s magnetic field. When the Earth?s magnetic field and upper atmosphere interact with the solar wind an auroras takes place. An aurora is a glow in a planet?s ionosphere caused by the planet?s magnetic field and charged particles form the sun. ?The Earth?s magnetic field and its interaction with the solar wind also produce the Van Allen radiation belts, a pair of doughnut shaped rings of ionized gas (or plasma) trapped in orbit around the Earth.
The Earth?s satellite, the moon, is its only natural satellite, but placed in orbit around the Earth are thousands of small artificial satellites.
From this report I have learned many facts about the Earth that I didn?t know before. I hope to learn as much about the other planets as I did about Earth.
Другие работы по теме:
God The Father Essay Research Paper The
God The Father Essay, Research Paper The Chain of Being Definition Basically The Chain of Being (also called The Divine Order) is an order in which people are ranked from the closest to God, all the way down to the minerals in the earth.
Venus Aphrodite Essay Research Paper In the
Venus (Aphrodite) Essay, Research Paper In the begining, there was Chaos. From Chaos and Mother Earth came the first race of Greek deities, the Titans. These first gods were ruled by Saturn, who had received the prophesy that his son will over throw him. Well, he ate all his children save one, the one his wife, Mother Earth (Gaia) placed on an island.
God Existence Essay Research Paper I do
God Existence Essay, Research Paper I do not believe God exists. I have many reasons why I think that there is no God. One of my many reasons is that there is no way that one man could have
Biogeography Essay Research Paper bBiogeographyAfter reading the
Biogeography Essay, Research Paper bBiogeography After reading the text on David Quammen?s voyage through many different islands of the world, I was hit with a certain impression of the world. The first thing that amazed me about how David Quammen wrote the book is that, within a few chapters I felt that the timeline of the creation of earth and suddenly shrunk immensely.
The Good Earth Essay Research Paper Good
The Good Earth Essay, Research Paper Good evening, we the graduating class of blessed sacrament school would like to welcome you to our 8th grade graduation. On behalf of the graduating class I especially would like to welcome Fr. McCarthy and Fr. Hand, Dr. Rouke, Teachers, Parents, relatives, and friends to our graduating ceremony.
Dinka Myth Essay Research Paper Dinka MythThe
Dinka Myth Essay, Research Paper Dinka Myth* The Dinkas believed that at one time both man and Divinity were in close contact, at this time death was nonexistent. There was a rope connecting the sky (where the Divinity lived) and the Earth (home of man) that was at the reach of a man’s outstretched arm. Every day the Divinity would give the first man and woman one millet to satisfy their needs, but they were forbidden to grow more.
Genius Essay Research Paper GenesisGenesis is the
Genius Essay, Research Paper Genesis Genesis is the start of a new beginning. In the King James Translation, the book of Genesis explains how everything came to be. Lord God creates meaningful things to establish the Earth. Amongst his creation he creates man and woman.
Genesis Essay Research Paper In reading the
Genesis Essay, Research Paper In reading the book Genesis, it is hard to discern what to believe. Since there are two stories of creation, I do not know which one is correct or if either is
Poem Angel Essay Research Paper Once upon
Poem: Angel Essay, Research Paper Once upon a time, there was a child ready to be born. So one day he asked God, “They tell me you’re sending me to earth tomorrow but how am I going to live there being so small and helpless?”
Ptolemy Sucks Ass Essay Research Paper 1
Ptolemy Sucks Ass Essay, Research Paper 1. Ptolemy established his own latitude and longitude places in the Roman Empire. Since he was wrong by about 30 % he estimated the earth to be one
Benificial Insects Essay Research Paper Beneficial Insects
Benificial Insects Essay, Research Paper Beneficial Insects Insects have been roaming the earth for millions of years. They have adapted to every climate and terrain on earth. No matter what we do they will always be amongst us. This is not necessarily a bad thing; insects are actually beneficial to us. Insects help pollinate our crops each year.
God Essay Research Paper I think this
God Essay, Research Paper I think this is all valid because Saint Thomas Aquinas is saying that God has to exist sometime in life to make the Earth and nature and so forth. If their were to be a infinity then there would be no first or last causes to have happened. There would be no first or last causes to have happened.
Copernicus Essay Research Paper Copernicus
Copernicus Essay, Research Paper Copernicus’ work on planetary motion stood an a very high mathematical level for his times. His theory explained how all the celestial bodies move around the Sun. It took Nicolaus 30 years of mathematical research to form a theory about planetary motion. The three most popular instruments which Copernicus used were quadrant, armilla, and triquetrum.
Fake Myth Essay Research Paper Many centuries
Fake Myth Essay, Research Paper Many centuries ago, before you, before me. Before water existed. There was a god, who roamed the earth in search of something, anything. He roamed the barren landscapes and searched under all rocks. Until one day he found something. It was a hole, a hole that seemed bottomless.
2 Chronicle Essay Research Paper solomon was
2 Chronicle Essay, Research Paper solomon was a king who had a hearts desire to have wisdom and knowledge from God so that he could lead his people whcih he says is Gods people. The significant
Discoveries Of Archimedes Essay Research Paper The
Discoveries Of Archimedes Essay, Research Paper ?The Discoveries of Archimedes? Archimedes truly was a man ahead of his time. He forever changed the face of mathematics and one of his discoveries even helped change the face of the earth.
Earth Rotation Essay Research Paper The Earth
Earth Rotation Essay, Research Paper The Earth is rotating around an axis (called its rotational axis). Some objects rotate about a horizontal axis, like a rolling log. Some objects, such as a
Time Travel Essay Research Paper The Twins
Time Travel Essay, Research Paper The Twins Paradox uses Einstein’s Theory of Special Relativity to explain that time travel is possible. Let’s say two twins are on Earth. They are both twenty years old. One leaves in a spaceship. She is gone for sixty years. When she returns the twin that remained on Earth is eighty years old, she on the other hand appears to be about thirty.
The Earth Essay Research Paper THE EARTH
The Earth Essay, Research Paper THE EARTH The Earth’s Place In Space: Despite its own special conditions,the Earth is in some ways similar to the other inner planets the group of planets
Saving Mother Earth Essay Research Paper The
Saving Mother Earth Essay, Research Paper The way we think about nature affects both our individual and social decisions. Various things may be affected, from the kind of food that we eat, to the products we buy, and locations we may attend. Different people have different feelings and ideas towards things.
Aurora Borealis Essay Research Paper Near the
Aurora Borealis Essay, Research Paper Near the Earth’s poles a magnificent spectacle of shimmering colored light can sometimes be seen — the aurora. The aurora is called the aurora borealis (Northern lights) and the aurora austrails (Southern lights); it can appear as bright as a full moon. The aurora usually appears near the Earth’s poles, and more northerly (or southerly) your latitude, the more impressive the displays you will see.
Near Earth Objects Essay Research Paper Near
Near Earth Objects Essay, Research Paper Near Earth Objects What are NEOs? Where do they come from? Do they pose any real threat to Earth? Can they provide viable space resources? All of these questions are now
Hell Essay Research Paper HELL Hell
Hell Essay, Research Paper HELL Hell. What is it? How do you get there? Well Hell isdifferent for many people. For some people Hell can be stuck inan elevator with Kathy Lee Gifford and listening to John Tesh beltout the tunes on his piano. Hell can also be living in a thirdworld country with no food and dying of some common disease thatis easily curable in some other country.
Life Is Like Essay Research Paper Life
Life Is Like Essay, Research Paper Life is like a car. When it?s new, it usually works all right. As time drives by, it breaks down and needs repairs. Life is like a leaf. In its youth, it
Supporting Big Bang Essay Research Paper Science
Supporting Big Bang Essay, Research Paper Science has hypothesized that the universe was created by a big bang. By researching stars and fossil records scientists have claimed that the earth is much older than it is said to be in the creation theory. The creation theory says that the universe is only several thousand years old, but carbon dating has shown that fossils on earth are millions of years old thus disproving part of the creation theory with evidence.
Lunar Eclipse Lab Essay Research Paper Title
Lunar Eclipse Lab Essay, Research Paper Title: Phases and Eclipses of the Moon Purpose: The purpose of this lab is to demonstrate the different phases of the moon during its revolution around the earth and also to display solar and lunar eclipses.
All Along The Watchtower Bob Dylan Essay
, Research Paper “There must be some way out of here,” said the joker to the thief, “There’s too much confusion, I can’t get no relief. Businessmen, they drink my wine, plowmen dig my earth,
Evolution Essay Research Paper 1a The
Evolution Essay, Research Paper 1)a. The first stated that sedimentary rocks are laid down in a horizontal manner, and the second stated that younger rock units were deposited on top of older rock units.