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GCSE: The Earth and Beyond

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  • Marked by Teachers essays 5
  • Peer Reviewed essays 24
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  1. Marked by a teacher

    'Sheenagh Pugh presents us with a Sad View of the Future and a Grim Warning of What Could Be. Discuss How She Does This, Paying Particular Attention to the way She Uses Mood and Language and how She Organizes the Poem.'

    4 star(s)

    The poem is set out as 24 short-worded lines and is also written in a free-flowing verse just like 'Do you think we'll ever get to see earth sir?'. The poem creates a sad atmosphere, by using phrases such as 'not back to port'. This shows that they, the survivors, are trying not to feel sad and are not looking back. They are looking forward to the place that they are going and the future that they will have. In line 2, one of the survivors says 'at least that was the name scratched on the smooth door', which creates sound in the poem - sibilance - the use of the 's' on 'scratched' and 'smooth'.

    • Word count: 1823
  2. Peer reviewed

    Concepts of the universe creation

    4 star(s)

    In 1965, Radioastronomers Arno Penzias and Robert Wilson discovered a 2.725 degree Kelvin (-454.765 degree Fahrenheit, -270.425 degree Celsius) Cosmic Microwave Background radiation (CMB) which pervades the observable universe. This is thought to be the remnant which scientists were looking for. Penzias and Wilson shared in the 1978 Nobel Prize for Physics for their discovery. * Finally, the abundance of the "light elements" Hydrogen and Helium found in the observable universe are thought to support the Big Bang model of origins.

    • Word count: 1426
  3. Peer reviewed

    The Life Cycle of the Stars

    4 star(s)

    In the Hierarchy of the universe, stars play an important role. They are huge bodies that have come into being from great clouds of light elements, either with the stars forming simultaneously, or in later evolution of the galaxies. When a star is born out of enormous clouds of gas and dust, they come together into a gigantic ball. Then there is the pressure from all the gas and dust banging into each other and it can reach millions of degrees in temperature.

    • Word count: 1184
  4. Peer reviewed

    Solar Energy

    4 star(s)

    In this essay I will explain how we humans take the use of solar energy. The advantages and drawbacks of this energy and how essential and useful solar energy is to our modern global society. Solar Thermal Energy Form of Energy: Thermal energy This energy is used for: Cooking/Heating, Drying/Timber seasoning, Distillation, Electricity/Power generation, Cooling, Refrigeration, Cold storage Some of the gadgets and other devices: Solar cooker, Flat plate solar cookers, Concentrating collectors, Solar hot water systems (Domestic and Industrial), Solar pond, Solar hot air systems, Solar Dryers, Solar timber kilns, solar stills, Solar photovoltaic systems, Solar pond, Concentrating collectors,

    • Word count: 1670
  5. Peer reviewed

    What types of problems and effects are been forced upon the planet with modern technology and the increasing population and what can be done to make the planet healthier?

    4 star(s)

    Paper which is made from trees should not be wasted and recycled when finished with. In order to prevent unnecessary usage of the planets resources' recycling helps to curb the effects of deforestation. Whenever a person uses a car or forgets to switch their television off at the mains, leaving the little red light to waste energy, a thought should be spared for the millions of men women and children that survive every day in third world countries who have quite possibly never seen a television. If every commuter car in the U.S. transported an extra person, it would save eight billion gallons of fuel a year.

    • Word count: 1295
  6. Free essay

    Physics Research and Report - What is Antimatter?

    3 star(s)

    In other words it will be total destruction or complete obliteration. It produces pure energy, which can be dangerous if not contained properly, though if it is it can be useful in more ways than one. After annihilation, charge, momentum and energy are all conserved. Why is there more Matter than Antimatter? There is a substantial amount more Matter in the universe than there is Antimatter. One of the reasons why this could be is: In the first few moments of the universe, the Antimatter might have decayed differently than their regular Matter counterparts.

    • Word count: 1095
  7. Peer reviewed

    Analysis of our Solar System

    3 star(s)

    These nine major planets in order from the centre are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Mercury is the planet nearest to the Sun. As it orbits the Sun, it does not rotate, keeping the same face of the planet toward the Sun at all times. This means that one side of the planet has a continual burning day of 900�F, and the other side a continual night and a deadly cold of 450�F below zero. Mercury is the fastest travelling of the nine planets making one full orbit around the Sun in only eight days.

    • Word count: 1447
  8. Peer reviewed

    A biography of Stephen Hawking.

    3 star(s)

    Stephen Hawking Biography Stephen Hawking was born on 1942 January 8th in Oxford, England. He was the oldest of 4 children in his family. His family lived in London in the 1950s When Stephen was only a little boy he loved things with moving parts and he loved to take things apart and see how they worked. When Stephen was just a kid he liked to build robot controlled boats and airplanes. Stephen was a very bright child, but he did not do very well in school. He didn't learn to read until he was eight years old, his work was usually very messy and he hardly ever studied.

    • Word count: 1073
  9. Peer reviewed

    Black Hole

    3 star(s)

    At that point, light particles would not be able to leave the surface of the star, and it would blink out and become an invisible black star. More than a century later, Albert Einstein, in his special theory of relativity, maintained that nothing can move faster than light. This means that Laplace's black stars are also black holes, because if light cannot escape, all other matter must be trapped as well. The surface of the black hole thus acts like a one-way membrane: material may fall into a black hole, but no information or energy can come out of a black hole.

    • Word count: 1086
  10. Space - Should the costing be spent?

    This proves I will be using a vast range of sources which I have selected, however most are screen-based as these are constantly being updated throughout key advancements. Space The universe contains everything - all of space and time and all the matter and energy within it. The universe is unknowably vast, and ever since it formed, it has been expanding, carrying some of its most distant regions forever beyond the naked eye. The universe contains everything from the smallest atom to the largest galaxy cluster and yet it seems they all have the same laws.

    • Word count: 1537
  11. life on earth

    These blobs are called microspheres and were not real cells but they were able to replicate themselves and reproduce. Energy from the sun and from lightning produced chemical reactions in the air that formed very complex molecules like nucleotides and amino acids. These are the building blocks of DNA (genes). Later pressure and heat in its center pushed up solid portions of the earth that became land forms. Sometimes the land would sink back down and other portions arise. Earth before life was completely different from what humankind knows today. The volcanic activity, lighting, and radiation were more severe, it was inhabitable.

    • Word count: 1217
  12. Copper Mining

    • Word count: 1720
  13. Does the Uk need new nuclear power stations

    He also claims that it is "waste of taxpayer's money", since the cost of building a nuclear power station is very high as is the cost of decommissioning one, when it is no longer needed. What is more a nuclear power station must be kept running all the time and is only 30% efficient, although in favor of nuclear power, the long term benefit is that nuclear fuel is relatively cheap. Kate Hudson, the chairman of CND, also claims that nuclear power is neither economically nor environmentally feasible, and argues that money would be better spent on sustainable energy sources, such as wind power, HEP and solar power, all of which are renewable and environmentally friendly.

    • Word count: 1333
  14. Creative Writing

    Their, flower scents would trail throughout the air like some kind of fragrant ghost. It was very deserted and was quite a secluded area. It was good to come here and think from time to time, to clear my head. When trudging through this emerald wasteland you could occasionally see the scurrying of a hare, darting around fidgeting in it's burrow, or just simply running around freely. You could see the adrenaline in its mysterious amber eyes. That shimmered and gleamed in the light, similarly to mine when I used to gaze deeply into a blazing fireplace.

    • Word count: 1144
  15. helium essay

    Just about all the helium remaining on the planet is the result of radioactive decay. While there is some helium in the atmosphere, currently its isolation from that source by liquefaction and separation of air is not normally economic. This is bacause it is easier, and cheaper, to isolate the gas from certain natural gases. Concentrations of helium in natural gas in the USA are as high as 7% and other good sources include natural gas from some sources in Poland.

    • Word count: 1723
  16. Original Writing I find it hard to believe that aliens launched an attack a few days ago on earth and I never knew that they really existed. It occurred so suddenly that no one knew

    It was all horrible all I could see were bodies everywhere. The army was doing everything but it was too much the soldiers were dying one by one. The only thing I could remember was a white strobe of light like an atomic b**b and that was the last thing I remember. Now I am alone sitting and praying here thinking that someone will come and rescue me. Second Entry: May 17th 2007 One week later it is really hard for me to get those appalling and tragic images out of my head.

    • Word count: 1975
  17. Media Course work: The Times and The Daily Star's Coverage of the Ian Huntley Conviction

    The Daily Star reports on gossip, s*x and what the celebrities are up to. The paper does not have a fixed political view and this comes across in the paper. The Times on the other hand is centrist and tries to be neutral and does not have a political side. It calls Ian Huntley "Huntley" instead of using vocabulary such as monster. On the front cover of the Daily Star it has a photograph of Maxine Carr kissing a seventeen-year-old boy the same night the girls were murdered. This is a human-interest story and is vaguely linked to the trial that found Ian Huntley guilty.

    • Word count: 1730
  18. One of the important features of the key stage 2 astronomy is making it apparent that the students probably knew more than they believed they did, as with regards to the teaching of how the position of the sun

    The diameter of Sedna is slightly smaller than Pluto's but likely somewhat larger than Quaoar. The first stumbling block with the teaching of the subject of Astronomy is at key stage 2 the pupils are required to know the very basics regarding the solar system. At this stage it is mostly considered that a basic knowledge and an understanding of shape of the planets and their movements around the sun causing the changes in seasons is important as without this knowledge it would make the further studies and in depth analysis of further key stages impossible.

    • Word count: 1464
  19. Astronomy is my first love.

    My passion also has some roots in my love for books. I encountered a lot of science fictions, which were too a reason for my stepping beyond the realms of Earth. If I critically analyze my life, I find the entrance of Astronomy as the turning point of my life. Astronomy came as blessing, as a source of life. It showed me what life really is. Before that I was a dumb and 'good for nothing' boy. I didn't have any special interest in anything, except book reading but that alone was limited to reading the detective stories, for which now I feel that I wasted that time and money.

    • Word count: 1646
  20. Global Warming Our planet's atmosphere traps energy just like a greenhouse. Energy from the Sun can enter the Earth's

    However, too many greenhouse gases can cause the temperature to increase out of control. Such is the case on Venus where greenhouse gases are abundant and the average temperature at the surface is more than 855 degrees Fahrenheit (457 degrees Celsius). We have increased the amount of carbon dioxide in the atmosphere by burning fossil fuels, such as coal, oil and petrol. Cows, rice fields and rubbish rotting in landfill sites produce methane, and aerosols and fridges use CFCs. The removal of trees - deforestation - is also thought to increase the greenhouse effect.

    • Word count: 1581
  21. Would Using alternative sources or energy dramatically reduce the need to burn fossil fuels and risk of global warming?

    and oceans organisms).Through photosynthesis, forests are able to absorb and store large amounts of CO2 in their structures; individually they absorb around 13 pounds of CO2 per year and one acre of forest absorbs about 2.8 tons of CO2. When forests are cleared or burnt CO2, methane and nitrous oxide are released into the atmosphere. Each year, deforestation contributes 23-30 percent of overall CO2 in the atmosphere by countries such as Brazil, Indonesia, Burma, Mexico and Thailand. Therefore, while more and more carbon dioxide is being released into the atmosphere, there are less and less forests to remove it.

    • Word count: 1933
  22. The Plight of the Tierzans

    His companion checked his computer. "He's Zorban's son." "You just wait", protested the first. "That's the cry of a great warrior." Moving to the engraved capsule he murmured, "Rugald: remember that name." * * * Five soldiers sat within a crater, battered and bruised from destroying a city. "Zorban actually remembers everything!" "Don't make me laugh", Taura mused. "Zorban might remember every second of every battle, but nothing of his personal life! Allow me to demonstrate. Zorban, do you remember when your son was born?" "No, but that was a long time ago." "It was only yesterday. Come on you need to go and see the little tyke.

    • Word count: 1211
  23. Training programme to help develop my performance in rugby at the position of flanker.

    CFCs are suitable because they are non-toxic, non-flammable, non corrosive and non-reactive with other chemical compounds. During the late 1950s and early 1960s the CFCs made possible an inexpensive solution to the desire for air conditioning in many automobiles, homes, and office buildings. Later, the growth in CFCs use took off worldwide with peak, annual sales of about a billion dollars (U.S.) and more than one million metric tons of CFCs produced. These safety characteristics, along with desirable thermal-conductivity and boiling point characteristics are the which features led to increased demand and made them ideal for all the uses listed above.

    • Word count: 1216
  24. 1) Give information on the main source (naturally occurring/man made) of a selected gas.

    Gas Main Source Heat trapping effectiveness compared with CO2 Overall Contribution to increased global warming Life Span in the Atmosphere (years) CO2 Combustion of fossil fuels and biomass 1 50% 2-30 CH4 Anaerobic decay of organic matter caused by intensive farming 30 18% 6-11 N2O Artificial fertilizers and combustion of biomass 150 6% 120-150 O3 Secondary pollutant in photochemical smogs 2000 12% - CFCs Refrigerant, propellant, foaming agents, solvent 10000 - 25000 14% 65-111 2) Explain why there is a present day issue relating to this gas.

    • Word count: 1880
  25. "The Impact of Deforestation on Global Warming"

    Without the greenhouse gases, the temperature on Earth would be approximately 33C colder than it is now, covering the Earth with ice. In past millennia, forests maintained a rough balance between the biomass of the world's vegetation and carbon dioxide. Forests kept increases in carbon dioxide in check by converting carbon into cellulose and releasing oxygen through photosynthesis. However, only about half the world's forests that existed a thousand years ago remain. Moreover, the concentration of carbon dioxide in the atmosphere has been increasing steadily since 1850.

    • Word count: 1348

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