Examination of Protozoan Cultures to Determine Cellular Structure and ..
Unformatted text preview: B.1 Sections of the lab report The structure of a lab report varies greatly across all disciplines and even within a specific domain. The one we will use in this course is this: Purpose Theory Apparatus Observations Calculations Graphs Results Discussion Purpose The purpose section is a short statement of the goal of the experiment. It should not be copied from the lab manual. A couple of sentence describing the method that will be used should be included. Theory The theory is a brief (1 to 2 pages) exposition of the theoretical justification for the experiment. Its function is to make the experiment intelligible. You should not develop in detail the theory behind the experiment. You should discuss briefly the phenomenon, used equations should also be discussed, defining variables involved, explaining the meaning and stating the limits of validity of equations. Apparatus Here, you should give a diagram of the apparatus and list of components, as follows: A diagram of the apparatus which gives, in schematic form, essential features and its geometry; The brand, or type of the instruments; The range (minimum and maximum values) and precision (smallest division) of all measuring devices; Lab Reports 8 A schematic diagram of the apparatus if it improves clarity; All the circuit diagrams in every experiment involving electricity. Observations The Observations section relates all the observations, both quantitative and qualitative, which were made in the lab. The record must be permanent and there should be no erasures. Tabulate results in columns separated by vertical lines. Use columns in which data are entered under headings. They are easier to read than rows. When practical, give each column a brief descriptive title in words. Under the headings, provide a row for the mathematical symbol denoting the quantity measured. Append units; these can also be given in a row below the reading errors. Provide another row for the reading error. This should not be shown with each reading. Show errors specific to data points, such as the error on an average, with the data entries. Record and show the initial or zero reading for all measurements. This means three entries columns if the readings differ for each time, length and mass. Whenever the zero reading is made only once, it should be given below the table. Leave prepared tables open ended so as not to limit the number of readings recorded. It is impossible to predict how many data points have to be done or redone. Do not erase apparently defective readings. These must be flagged and cross-referenced with the readings which replace them. An explanation should be given saying why a reading is rejected. A data entry log must never be modified....
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Structure Of A Lab Report | Professional Writing Website
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How to Write a Lab Report - Steps and Template