• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The Life Of A Star

Extracts from this document...


The Life of Star

Space may seem empty, but actually it is filled with thinly spread gas and dust. This gas and dust is called interstellar medium. The atoms of gas are mostly hydrogen which is H2, and the gas atoms are typically about a centimeter apart. The dust is mostly microscopic grains and combines only a few percent of the matter between stars. The dust is mostly carbon and silicon. In some places, this interstellar medium is collected into a big cloud of dust and gas known as a nebula. This is the birthplace of stars because the gas and dust is what makes up a star.

Small Stars: image00.png

Stage 1- Stars are born in a region of high

...read more.


Stage 7 - The core is hot enough for the helium to fuse to form carbon. The outer layer and then begins to expand, cool and shines less brightly. The expanding star is now called a Red Giant.

Stage 8 - The helium core runs out, and the outer layers drift and go far from the core as a gaseous shell, this gas that surrounds the core is called a Planetary Nebula.


Stage 9 - The remaining core is now in its final stages. The core becomes a White Dwarf the star eventually cools and dims. When it stops shining, the now dead star is called a Black Dwarf.

Massive Stars:

Stage 1 - Massive stars evolve in a similar way to a small star until it reaches its main sequence stage.

...read more.


argin-left:0px;margin-top:0px;" alt="image13.png" />image14.pngimage15.pngimage02.pngimage03.pngimage04.pngimage05.pngimage06.pngimage07.pngimage08.pngimage09.png

Stage 5 - Sometimes the core survives the explosion. The surviving core is small contracts to become a tiny, very dense Neutron Star. If the core has a much greater mass, the core contracts to become a Black Hole.

...read more.

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

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Here's what a star student thought of this essay

3 star(s)

Response to the question

The candidates response is fairly straightforward, they haven’t provided a great deal of detail and their are several areas for improvement. One of which is the lack of a clear introduction, you should always write an introductory paragraph for this ...

Read full review

Response to the question

The candidates response is fairly straightforward, they haven’t provided a great deal of detail and their are several areas for improvement. One of which is the lack of a clear introduction, you should always write an introductory paragraph for this type of work. It is important that your introduction states exactly what you plan to discuss within your essay so that the premise of your work is clear. You also need to briefly introduce your topic, in this case you should state what a star is and perhaps state something along the lines of ‘All stars are formed in space’ and ‘The formation for a star takes place in nebulae.’ You can then use your first paragraph to go into more detail.

Level of analysis

Though the information the candidate has given is accurate, which demonstrates a good understanding of this topic, they have given a fairly brief description of each of the stages of the life cycle of a star. Had they taken the time to throughly research this topic, they could have provide more detail, this would make the essay more enjoyable to read and it would have given the candidate the opportunity to expand their knowledge, which shows enthusiasm and dedication to your subject. However, if you do take the time to undergo some research, you must include a bibliography stating the resources you have used, so that you can avoid accusations of plagiarism. On another note, this piece of work comes to an abrupt end as the candidate has not concluded their work, a conclusion is vital for any type of essay, as this allows you draw your essay to a close and it gives you a chance to leave the reader with a good impression of your work. When writing your conclusion, you should give a summary of the most important points you have mentioned in your essay and you should state why these are important, as this allows you to tie together any lose ends. You also need to give a personal response to your topic, this could be what you learnt from writing your essay, this is important, as your teacher/examiner is interested in what you have to say.

Quality of writing

The layout of this piece of work makes it difficult to follow at times, firstly, the writing is in a bullet point format, which is not something I would recommend as it can make an essay feel jumpy and at this level of qualification you should be able to write scientific information in continual prose, you should at least attempt to do so as this is the accepted way to write a scientific essay. Secondly, the way in which the candidate has placed images throughout their work means that the information is constantly jumping form side to side and this again makes the essay very difficult to follow. If you plan to include images, then you should make sure you do so in a way that is not intrusive to the essay. That said, the candidate does use appropriate scientific terms throughout their work and with the exception of the essay title, which should be ‘The life of a star’ there are no issues with spelling or grammar.

Did you find this review helpful? Join our team of reviewers and help other students learn

Reviewed by pictureperfect 28/07/2012

Read less
Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE The Earth and Beyond essays

  1. Examination Day and The Star compare plot, setting, characters, language, themes and historical and ...

    seems as if the author is expecting the readers to know who Ogilvy is already. The narrator brings himself into the story (paragraph three on the second page) and writes in first person. I believe the narrator could be writing about the event from the future, as he knows everything from around the world.

  2. A consideration of Lord of the Rings: Fellowship of the Ring, and Star Wars: ...

    The latter is also considerably longer in length, but is equivalent to the five minutes of text seen in the opening sequence in Star Wars. Both are equally effective but Fellowship of the Ring is much more compelling and far more memorable.

  1. continental drift

    Evidence * In the 1950's the Mid-Atlantic ridge was investigated. Scientists found that magma (molten rock) rises up through the sea floor, solidifies and forms roughly symmetrical underwater mountains either side of the ridge. This process-called seafloor spreading- causes the ocean floor to spread at a speed varied from 1 to 9 cm per year.

  2. Naina The Big Bang

    This fact supports the part of the theory that says the universe is expanding. Galaxies further away from Earth are moving at a faster rate. It is like blowing up a balloon. If you mark five points in a line with equal intervals between them, as you blow the balloon up, the distance between the points increases.

  1. Should We Persue Manned Space Flights?

    It proved successful in its planned mission of observing Jupiter and Saturn and the went on to provide us with further data and will soon be able to tell us more about interstellar space, a region where the sun has no influence on other bodies.

  2. Science research project. Mahoney John holds the view that ...

    monitoring the threat of pollution, enhancing medical instruments for better health care and much more. However it is important to point out that the efficiency of a space mission should surpass the thrill and wonder of having man in space.

  1. Earth & Space Topics Overview

    travel through space together, with the Moon circling the Earth about once a month. The Moon is the Earth's nearest neighbour in space, lying on average 385,000km away. During the lunar month, the Moon seems to change shape, going from a slim crescent to a full circle and back again.

  2. What Is The Life Cycle of a Star?

    Stars are created as the nebula slowly contracts under its own gravity caused by gravitational attraction and a clump of matter forms inside the cloud. Gravity continues pulling in more matter and the clump collapses inward. The clump becomes denser and begins to heat up.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work