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Analysis of our Solar System

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Analysis of our Solar System

On a hot summer night, as you are sitting outside enjoying the evening, you tilt your head back and look into the night sky. You begin to wonder what is really out there? How far away are the stars? Are they stars or are they planets?

We live in a part of the night sky called the "Milky Way Galaxy." Our galaxy can be seen with the naked eye on a clear summer night. It resembles a ribbon stretched across the night sky. During the summer is when the Milky Way is at its fullest with the stars so clustered together they look like one white mass.

Our galaxy is a gigantic agglomeration of stars and planets whose numbers will probably never been known. Currently we estimate this number to be about thirty billion. Scientists have estimated that the radius of our galaxy if it were to be travelled, would take us about fifty thousand light years and the thickness to be about fifteen to twenty light years.

We live in small part of the Milky Way Galaxy, which is referred to as a solar system. Our solar system is made up of nine planets and 31 moons, which orbit the centre of galaxy. At the centre of our galaxy is our Sun, which is approximately twenty-five thousand light years from our solar system.

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The best time to view Venus comes every one hundred and twenty years as it passes between the Earth and the Sun. The next time to best view it will be on June 7, 2004.

Earth, the third planet form the Sun is our home planet. Earth is the only planet in our solar system known to sustain life. Under the layer of atmosphere that surrounds the planet we are able to provide all the necessary components to make life sustainable. Earth is the fifth larges planet in the solar system. Its diameter is just a few hundred kilometres larger than Venus. Earth rotates on its axis one complete revolution in a twenty-four hour period and orbits the Sun in three hundred and sixty five days.

Mars if the fourth planet from the Sun and is the closest neighbour to earth. Every seventeen years Mars reaches it closest point to earth in its orbit around the Sun at thirty-five million miles.

Mars is a small planet that has a red glow. It makes one complete orbit around the Sun in six hundred and eighty seven days. Oxygen and water vapour have been detected in the atmosphere of Mars, and a yellowish fog and clouds move around the planet indicating that the planet has different types of weather and seasons like earth.
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Uranus is the seventh planet form the Sun. The name Uranus comes from Greek mythology. Uranus was the "God of the Heavens."

Uranus is situated one thousand seven hundred and eighty two miles form the Sun and completes one orbit around the Sun every eighty-four years. The size of this planet is four times that of earth, but has the same force of gravity on the surface as earth. There are five moons that orbit this planet. The largest one is Titania.

Neptune, the eighth planet from the Sun, is invisible to the naked eye. It is located some two thousand seven hundred and ninety-three million miles form the Sun. A single orbit around the Sun takes one hundred and sixty-five yeas to complete. This planet only receives one nine-hundredth of the heat and Sunlight as the earth.

Pluto is the ninth planet from the Sun. The name Pluto comes from the Roman God who was the ruler of the under world.

Pluto is located three thousand six hundred and seventy million miles form the Sun. It orbits the Sun in total darkness, and is about the same size as Mars and has a diameter two thirds that of earth's moon. Due to the distance and size of Pluto, it can only be seen with the use of a twenty-inch telescope.

Little is known about this planet. Our best chance to study this planet came in 1989 when it made its closest orbit past the Sun. Most of the information about this planet was observed in the 1970’s.

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This student written piece of work is one of many that can be found in our GCSE The Earth and Beyond section.

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Here's what a star student thought of this essay

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Response to the question

The candidate gives a very detailed response, though their essay would read better, if they had kept to one paragraph for each of the planets, some of their paragraphs are only one or two sentences long, which is pointless. The ...

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Response to the question

The candidate gives a very detailed response, though their essay would read better, if they had kept to one paragraph for each of the planets, some of their paragraphs are only one or two sentences long, which is pointless. The general rule for starting a new paragraph is that, you begin a new one for each different point, however as the information for each planet is only brief, it is suitable to keep it all together rather than split up the information into smaller sentences. That said, this essay starts of really well, the candidate manages to engage the reader and the essay is easy to follow and interesting to read. However a good introduction should always state exactly what you plan to discuss, this is missing from the candidates introduction, this is important as it ensure that the purpose of your essay is clear.

Level of analysis

The candidate has given a great deal of detail about each of the planets in our Solar system, therefore it is likely they have taken the time to research this subject. By doing independent research you demonstrate dedication and enthusiasm for your subject and the additional information you include in your work can make your essay more enjoyable to read. Though the candidates discussion of the planets is detailed, these are not the only objects in our Solar system, if the candidate had taken the time to research and discuss various moons, comets, etc they would have shown a greater depth of knowledge. Furthermore, the candidate hasn’t written a conclusion, you should always conclude your work as it allows you to bring your essay to a close, when an essay ends without a conclusion it appears unfinished, its like stopping someone stopping as they are half-way through a story, you never get to hear how it ends. There are several things you need to think about when you write a conclusion, you should try and link it in with your introduction, this is so that you answer any questions you have set yourself. You also need to give summary of your key points and state why each is important as this helps to tie together any lose ends and finally you need to give a personal response to the essay topic as your teacher/examiner is interested in what you have to say and what you have learnt.

Quality of writing

This essay is of a good standard, it is well written, easy to follow and the information included is interesting to read. In addition to this the candidate uses appropriate terms and names, all of which are spelt correctly and they have demonstrated a good understanding of the planets within our Solar system.

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Reviewed by pictureperfect 27/07/2012

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