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How to write a Lab Report Assignment

How to write a Lab Report Assignment

A lab report is description and analysis of a laboratory experiment exploring a scientific concept. Its communicates laboratory work to the management and helps in archiving the work.


When you get a lab report assignment without writing guidelines, prepare it in the flowing steps:

Choose an Appropriate Lab Report Assignment Title

Your title should be the name of the experiment or lab. Make it descriptive but concise. Explain what you did in about ten words.

Abstract:It is the synopsis of your experiment. You should write your abstract concisely in normal grammar without many abbreviations. The reader will have some knowledge about the paper thus your abstract does not require much detail in figures, sections or tables. Write one or two opening sentences that indicate the subjects you are dealing with in your paper and objectives of your investigation. You can also briefly describe the treatment.

Indicate new facts and conclusions arising from your experiment. If space permits include the new numerical data to draw the attention of the reader to the data. For experimental results, you should indicate the methods you used to reach them. Your abstract should be one paragraph. Length varies from one lab report to another but should not be more than 200 words.

Introduction:Identifies the objective, importance, and background for an understanding of the experiment. The goals are useful for analysis, in conclusion, to establish if the test was successful. The background should have theoretical predictions about what your results ought to be.

Materials:Lists everything that was necessary for completing the experiment

Procedures:Write down the procedure of your experiment and the exact measurements you undertook. It is a step by step procedure of the lab that provides the audience with adequate information that they use to replicate your experiment results. Provide details about these variables of an experiment:

  • Controlled variables- Stay constant throughout your experiment
  • Independent variable- one thing that changes in an experiment
  • Dependent variable: Changes due to manipulation of the independent variable

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Some instructors require the procedure to be in a paragraph as a description of your activities and not as instructions. You may also combine the materials and procedure list into one paragraph. The critical step is to observe clarity and provide enough detail for anyone to complete the experiment and explain its stages in a detailed simple to follow manner.

Results and discussion:The presentation of results and their discussion is the heart of a lab report.You should scrutinize the results and discuss their implications. Pay attention to any errors in the experiment focusing on their origin and their significance for the purpose of interpreting the reliability of your conclusions. Graphs a great way of presenting numerical results. You should hypothesize what could happen if you change a variable in the experiment.

Conclusion:Whereas a results and discussions section covers the results of the whole test in the context, longer lab reports have a conclusion section. At this section, you examine the objectives in your introduction to determine if you study was a success. If you did not achieve the goals, you should analyse the reason why it was impossible to predict current results. Go further to state what you could do differently to improve the preciseness and quality of the experiment.

Appendices:Presents information with too many details to place in the text of the lab report. For instance, when your table of variables and outcomes is long, you can present the information in the appendix but include a graph with data in the text of your report.>

Another form of appendix shows peripheral information that has no direct relation with objectives of the experiment. A formal appendix has a beginning, middle and ending but because of the time constraints, your instructor can allow the use of informal appendices containing calculations and supplemental details. It will still be necessary to title an informal appendix, include a heading on each table, caption beneath a figure and writes appropriate comments for the reader’s understanding.

Reference your Lab Report Assignment

The lab report is academic in nature hence you should cite facts requiring documentation and list references when you use someone's work.

A citation informs the readers about the source of your information.

A reference provides readers with details about the source to understand what type it is and even find it themselves.


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