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How to Write an Effective Conclusion for a Science Lab Report
Last Updated: August 9, 2024 Fact Checked
- Discussing the Experiment
- Writing What You Learned
- Ending Your Conclusion
Finalizing Your Lab Report
This article was co-authored by Bess Ruff, MA . Bess Ruff is a Geography PhD student at Florida State University. She received her MA in Environmental Science and Management from the University of California, Santa Barbara in 2016. She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group. There are 10 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 1,784,587 times.
A lab report describes an entire experiment from start to finish, outlining the procedures, reporting results, and analyzing data. The report is used to demonstrate what has been learned, and it will provide a way for other people to see your process for the experiment and understand how you arrived at your conclusions. The conclusion is an integral part of the report; this is the section that reiterates the experiment’s main findings and gives the reader an overview of the lab trial. Writing a solid conclusion to your lab report will demonstrate that you’ve effectively learned the objectives of your assignment.
How to Write a Lab Report Conclusion
- Restate the purpose of the experiment and your procedures.
- Describe the results or findings and if they support your hypothesis.
- Mention what you've learned from the experiment.
- Note any errors or uncertainties that could affect the results.
- Propose experiments for the future to gain more findings.
Outlining Your Conclusion
- Restate : Restate the lab experiment by describing the assignment.
- Explain : Explain the purpose of the lab experiment. What were you trying to figure out or discover? Talk briefly about the procedure you followed to complete the lab.
- Results : Explain your results. Confirm whether or not your hypothesis was supported by the results.
- Uncertainties : Account for uncertainties and errors. Explain, for example, if there were other circumstances beyond your control that might have impacted the experiment’s results.
- New : Discuss new questions or discoveries that emerged from the experiment.
- Your assignment may also have specific questions that need to be answered. Make sure you answer these fully and coherently in your conclusion.
Discussing the Experiment and Hypothesis
- If you tried the experiment more than once, describe the reasons for doing so. Discuss changes that you made in your procedures.
- Brainstorm ways to explain your results in more depth. Go back through your lab notes, paying particular attention to the results you observed. [3] X Trustworthy Source University of North Carolina Writing Center UNC's on-campus and online instructional service that provides assistance to students, faculty, and others during the writing process Go to source
- Start this section with wording such as, “The results showed that…”
- You don’t need to give the raw data here. Just summarize the main points, calculate averages, or give a range of data to give an overall picture to the reader.
- Make sure to explain whether or not any statistical analyses were significant, and to what degree, such as 1%, 5%, or 10%.
- Use simple language such as, “The results supported the hypothesis,” or “The results did not support the hypothesis.”
Demonstrating What You Have Learned
- If it’s not clear in your conclusion what you learned from the lab, start off by writing, “In this lab, I learned…” This will give the reader a heads up that you will be describing exactly what you learned.
- Add details about what you learned and how you learned it. Adding dimension to your learning outcomes will convince your reader that you did, in fact, learn from the lab. Give specifics about how you learned that molecules will act in a particular environment, for example.
- Describe how what you learned in the lab could be applied to a future experiment.
- On a new line, write the question in italics. On the next line, write the answer to the question in regular text.
- If your experiment did not achieve the objectives, explain or speculate why not.
Wrapping Up Your Conclusion
- If your experiment raised questions that your collected data can’t answer, discuss this here.
- Describe what is new or innovative about your research.
- This can often set you apart from your classmates, many of whom will just write up the barest of discussion and conclusion.
Community Q&A
- Ensure the language used is straightforward with specific details. Try not to drift off topic. Thanks Helpful 1 Not Helpful 0
- Once again, avoid using personal pronouns (I, myself, we, our group) in a lab report. The first-person point-of-view is often seen as subjective, whereas science is based on objectivity. Thanks Helpful 1 Not Helpful 0
- If you include figures or tables in your conclusion, be sure to include a brief caption or label so that the reader knows what the figures refer to. Also, discuss the figures briefly in the text of your report. Thanks Helpful 1 Not Helpful 0
- Take care with writing your lab report when working in a team setting. While the lab experiment may be a collaborative effort, your lab report is your own work. If you copy sections from someone else’s report, this will be considered plagiarism. Thanks Helpful 4 Not Helpful 0
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- ↑ https://phoenixcollege.libguides.com/LabReportWriting/introduction
- ↑ https://www.education.vic.gov.au/school/teachers/teachingresources/discipline/english/literacy/Pages/puttingittogether.aspx
- ↑ https://writingcenter.unc.edu/tips-and-tools/brainstorming/
- ↑ https://advice.writing.utoronto.ca/types-of-writing/lab-report/
- ↑ http://www.socialresearchmethods.net/kb/hypothes.php
- ↑ https://libguides.usc.edu/writingguide/conclusion
- ↑ https://libguides.usc.edu/writingguide/introduction/researchproblem
- ↑ http://writingcenter.unc.edu/handouts/scientific-reports/
- ↑ https://phoenixcollege.libguides.com/LabReportWriting/labreportstyle
- ↑ https://writingcenter.unc.edu/tips-and-tools/editing-and-proofreading/
About This Article
To write a good lab conclusion in science, start with restating the lab experiment by describing the assignment. Next, explain what you were trying to discover or figure out by doing the experiment. Then, list your results and explain how they confirmed or did not confirm your hypothesis. Additionally, include any uncertainties, such as circumstances beyond your control that may have impacted the results. Finally, discuss any new questions or discoveries that emerged from the experiment. For more advice, including how to wrap up your lab report with a final statement, keep reading. Did this summary help you? Yes No
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How to Write a Good Conclusion For a Lab Report
Writing a good conclusion for your science lab report can be the difference between a good grade and a great one. It's your last chance to show you understand the experiment and why it matters. This article will help you learn how to write a lab conclusion that sums up your work and shows your teacher that you understood what you did.
What Should Be in Your Lab Report Conclusion?
A good lab report conclusion wraps up your lab work in a neat package. When you're thinking about how to write a conclusion for a lab report, focus on four main things. First, remind everyone in a sentence or two of your experiment objectives. Then, quickly mention how you did the experiment and what you found out, but don't introduce new ideas.
Next, talk about the most important things you learned from your experiment. Show how what you found out connects to what you initially tried to do. Lastly, think briefly about what your work means or any limitations you faced during the process. You may include suggestions for further investigation but refrain from proposing solutions.
How to Write a Lab Report Conclusion
To write a good lab conclusion, follow these steps:
- Remind the reader why you did the experiment and its aims.
- Describe how you did the experiment and what tools you used.
- Briefly discuss the samples used and the results obtained.
- Provide a short analysis, including your arguments and assumptions.
- Relate your findings to the broader scientific context of your discipline.
Important: Keep your conclusion short and easy to understand. A lab conclusion should be about 200-300 words or one paragraph. But if your experiment was really complex, you might need up to 500 words.
Remember, your lab conclusion is part of a bigger report. Always make sure your whole report is well-organized, with a title, introduction, how you did things, what you found, what it means, conclusion, and a list of where you got your information. If you have a lot of numbers or calculations, put them at the end in a separate section to make your report easier to read.
A Sample Lab Report Conclusion
Here's an example of how to write a scientific conclusion for a plant experiment:
The experiment examined how various light wavelengths impact tomato seedling growth. Our findings revealed that blue light (450-495 nm) significantly enhanced stem elongation and leaf surface area in tomato seedlings compared to red (620-750 nm) or full-spectrum white light. Throughout the 4-week study, seedlings exposed to blue light achieved an average height of 15.3 cm, surpassing those exposed to red (10.7 cm) and white light (12.1 cm). These results align with our hypothesis that blue light promotes more vigorous vegetative growth in tomato seedlings, potentially due to its activation of phototropins and cryptochromes. While these outcomes provide valuable insights into early-stage tomato plant development, additional research is necessary to determine the long-term effects on fruit production and quality. This study contributes to our understanding of optimizing light conditions for improved seedling growth in controlled agricultural environments.
This example shows the important parts of a good lab conclusion: it reminds us what the experiment was for, tells how it was done, shares the results, and explains what it all means.
Useful Tips for Improving Your Lab Conclusion
To make your conclusion lab report better, try these tips:
- Review your grading rubric to ensure you meet all requirements.
- Maintain an appropriate tone (explanatory, descriptive, or process-oriented).
- Keep your notes nearby so you can check your facts.
- Use your own words to say what you were trying to do; don't just copy from your lab instructions.
- Use passive voice and past tense , typically avoiding first-person perspective. Most lab reports are written in the third person.
When writing a discussion lab report, focus on clarity and sticking to what's important. Don't add new information or discuss things that aren't part of your experiment.
Making Your Scientific Conclusion Clear and Impactful
Writing a great lab report conclusion doesn't have to be hard. With the tips we've discussed on writing a scientific conclusion, you can now write good summaries of your science work. Remember, when writing your discussion lab report, stay focused on your experiment and what you found out. Don't talk about things that aren't related or say things you can't prove. Instead, explain your results, their meaning, and why they matter in science.
Need a little extra help polishing your scientific writing? Aithor might be just what you're looking for. This nifty AI writing tool will streamline your essay and report writing processes. It keeps your original ideas intact while giving your work a professional shine. Whether tackling a tricky lab report or a complex essay, this tool can help you craft well-structured, engaging content in no time.
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1. Start by restating the purpose of the experiment:
A good lab conclusion starts with a clear and concise restatement of the purpose of the experiment. This helps the reader to quickly understand what the experiment was about and how it connects to your results.
2. Summarize your observations and results:
In this section, you should provide a brief summary of the main observations and results obtained from your experiment. Use clear language and avoid going into too much detail on every experimental step.
Focus on the most important findings, highlight trends or patterns, and draw attention to any anomalies.
3. Compare your results with initial predictions or hypotheses:
Next, it’s essential to compare your results with any initial predictions or hypotheses that might have been made before the experiment took place. Discuss whether your observations are consistent with these predictions, and if not, provide an explanation for any discrepancies that may have occurred. This is important because it shows how well you understood your experimental design, as well as providing an opportunity for critical thinking about why certain outcomes were observed.
4. Identify potential sources of error:
A good lab conclusion acknowledges potential limitations or sources of error that may have affected the outcome of the experiment. Identifying these can help you improve upon future experiments and further hone your scientific skills. Also, mentioning these sources demonstrates that you are aware that experiments are not always perfect, which shows humility and improves credibility.
5. Suggest improvements or future research opportunities:
Finally, after analyzing your results and considering potential sources of error, suggest improvements that could be made to refine this experiment or future studies addressing similar questions. This can include changes to the experimental design, more rigorous controls, or new research questions that arose from your findings. Providing well-thought-out suggestions shows readers that you have carefully considered the implications of your study and demonstrates engagement with the scientific process beyond just analysis.
By following these five steps, you will be well on your way to crafting a clear, relevant, and comprehensive lab conclusion. Always remember that a good lab conclusion effectively communicates your findings and situates them within the broader scientific context.
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Results. According to my experiments, the Energizer maintained its voltage (dependent variable) for approximately a 3% longer period of time (independent variable) than Duracell in a low current drain device. For a medium drain device, the Energizer maintained its voltage for approximately 10% longer than Duracell.
1. Introduce the experiment in your conclusion. Start out the conclusion by providing a brief overview of the experiment. Describe the experiment in 1-2 sentences and discuss the objective of the experiment. Also, make sure to include your manipulated (independent), controlled and responding (dependent) variables.
A conclusion paragraph contains a description of the purpose of the experiment, a discussion of your major findings, an explanation of your findings, and recommendations for further study. Address the following points in paragraph form (don’t just number off and answer each question) 1. Restate the overall purpose of the experiment (include ...
To write a good lab conclusion, follow these steps: Remind the reader why you did the experiment and its aims. Describe how you did the experiment and what tools you used. Briefly discuss the samples used and the results obtained. Provide a short analysis, including your arguments and assumptions. Relate your findings to the broader scientific ...
Key Info. Your conclusions summarize how your results support or contradict your original hypothesis: Summarize your science fair project results in a few sentences and use this summary to support your conclusion. Include key facts from your background research to help explain your results as needed. State whether your results support or ...
Write a science project conclusion that restates the experiment and hypothesis, explains procedures and findings, discusses results, states if the data supports the hypothesis, uses background knowledge to explain findings, identifies relationships between the IV and DV, highlights uncertainties, and suggests improvements and future research.
• The Example Conclusion on the next page demonstrates how a conclusion can be written with the three parts (note that numerical data or graphs are not necessarily appropriate for every experiment). Example Procedure (NOTE: You do not need to include the procedure in your conclusion. It is only here to provide context for the example conclusion.)
Biology Lab Report Sample Writing for Science Title Page Running Head: DESCRIPTIVE TITLE OF YOUR EXPERIMENT Descriptive Title of Your Experiment every page. Your Name Course Section Date of Experiment Name(s) of Lab Partner(s) What is the purpose of scientific papers?
A lab report conclusion should be comprehensive and precise. Also, it should: Clearly state any possible errors that may have occurred during the course of the experiment. Follow the rules of formal writing. Specifically answer the research question the experiment is based on. Provide proper references and citations.
Spread the love. 1. Start by restating the purpose of the experiment: A good lab conclusion starts with a clear and concise restatement of the purpose of the experiment. This helps the reader to quickly understand what the experiment was about and how it connects to your results. 2.