Science Lab Report

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For example, if you are trying to determine protein levels by spectrophotometry, you would record all the spectrophotometry readings for your standards and samples in the first table, and use the standard readings to construct a graph of protein concentration versus absorbance readings (a standard curve).

The concentration of the samples can then be worked out from the graph, and recorded in a separate table.

An experiment with many variables that stretches over a considerable amount of time may require more attention in all sections than a smaller lab experiment that maybe took 2-3 hrs for example.

Also a conclusion should match a paper in most respects; 'skimpy' or underdeveloped conclusions are discouraged.

If the amount of raw data is excessive, consider presenting it as an appendix. "the concentration of protein in serum sample xyz was found to be xx g/L, which is within the normal reference range"), or it may even be a tabulated summary of results.

It should always reflect the question(s) posed in the Aim(s)."see practical notes page xx - alterations noted" and others may require a photocopy of the method attached to the report (with any alterations noted).This is the raw data and is best presented in the form of tables and graphs.This last purpose is often the main one showcased in the conclusionary part of a report.Along with other key factors the conclusion should specifically detail the main benefits of the report, what was learned, and precisely connect it to the main purpose the experiment.What the results mean, whether they were as expected (and if not, why not), any problems with the practical etc.For example, a result outside the normal reference range could indicate one or more disease states, which should be mentioned.Normally, the method is given out as part of the practical notes and very rarely would you be required to rewrite it, although you may have to note any alterations.Some lecturers will be happy with a reference to the method, e.g.It is usual to run a positive and negative control with any analysis as a way of making sure that the method worked.This would be in the form of a normal and an abnormal control of known value for a practical like the serum protein analysis.

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