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AS and A Level: Science
4,940 AS and A Level Science essays
- Marked by Teachers essays 102
- Peer Reviewed essays 178
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Cellular Structure amd Function
5 star(s)A very comprehensive and detailed piece of work on cells. The function and structure of all the major cell types are described and explained along with a simple diagram to…
- Essay length: 1907 words
- Submitted: 22/07/2012
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Marked by teacher:
Louise Star
10/04/2013
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Revision Notes. Substances Manufactured for use in Industries. Chemicals, alloys and polymers.
5 star(s)This is a very comprehensive set of notes. It goes into a good level of detail although the science is at an intermediate level (not too difficult). It is very…
- Essay length: 1420 words
- Submitted: 24/03/2012
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Marked by teacher:
Brady Smith
10/04/2013
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Write an essay on electrode potentials.
5 star(s)This is an extremely well explained report on electrochemical cells. The author explains how a cell works with incredible clarity and very helpful equations and diagrams. The paragraphs may seem…
- Essay length: 1107 words
- Submitted: 10/03/2012
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Marked by teacher:
Brady Smith
10/04/2013
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Write an account of buffer solutions.
5 star(s)This is a highly detailed account with lots of correct equations and in depth chemistry.
This is a 5* piece of work…- Essay length: 974 words
- Submitted: 10/03/2012
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Marked by teacher:
Brady Smith
14/12/2012
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Experiment to determine the ethanol content of wine
5 star(s)This is an excellent, highly accurate, very reliable report. It uses sophisticated equipment and fairly complicated science to make a valid conclusion
This piece of work is a 5*…- Essay length: 2599 words
- Submitted: 13/02/2012
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Marked by teacher:
Brady Smith
20/02/2012
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Experiment to Determine Acidities of Wine. The purpose of this experiment is to determine the total and volatile acidities of each of the wines and compare them.
5 star(s)This is an excellent report. It uses sound theory to construct and perform a very accurate experiment. It then makes direct and legitimate conclusions. It is written well and is…
- Essay length: 3117 words
- Submitted: 13/02/2012
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Marked by teacher:
Brady Smith
17/06/2112
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Reactions of aldehydes and ketones. The purpose of this experiment is to compare some reactions of ethanal and propanone.
5 star(s)This is a fantastic, extremely detailed account with excellent chemistry used throughout. I would highly recommend it to anyone studying the identification of aldehydes or ketones
This piece of…- Essay length: 2576 words
- Submitted: 31/12/2011
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Marked by teacher:
Brady Smith
14/07/2112
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Preparation of propanone from propan-2-ol
5 star(s)This is a highly detailed, well laid out experiment with excellent alternative methods.
This piece of work is 5*…- Essay length: 2193 words
- Submitted: 31/12/2011
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Marked by teacher:
Brady Smith
20/02/2012
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Objective To find out the equilibrium constant, Kc, for the reaction below, using acid hydrolysis:
5 star(s)This is a very descriptive, well through out practical. It contains advanced mathematical analysis for an A2 course and draws good conclusions
This piece of work is 5 stars…- Essay length: 1372 words
- Submitted: 19/11/2011
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Marked by teacher:
Brady Smith
23/05/2112
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Heat of Neutralization. Objective: To investigate the enthalpy changes () of various acid-base neutralizations.
5 star(s)This is a very good report. It has a detailed, reliable method and excellent graphs of results. The calculations within it are set out very well and allow valid conclusions…
- Essay length: 2605 words
- Submitted: 13/11/2011
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Marked by teacher:
Brady Smith
14/12/2012