How To Write Lab Report Introduction: Example and Tips

This is a type of work that demands utmost attention and complete responsibility. That's why it’s a kind of adventure for some student because not everyone has enough time and energy for it, but that’s not a reason to get a low grade! Many of you ask how to write an introduction for a lab report without missing anything, and how to describe all the stages. has created a guide to help you write a lab report introduction that is clear, concise, and informative. Our guide provides key tips and advice on how to write a successful introduction that will help you get the best results. Let’s check!

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What is a lab report introduction?

Formal lab report writing is a clear and consistent description that you make while you record information. But what is its purpose? The purpose of this assignment is for students to completely understand what they have done and can summarize and analyze. Usually, lab report introductions are written for such disciplines as chemistry, biology, physics, psychology, microbiology, etc.

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How Long Should An Introduction For A Lab Report Be?

The introduction is one of the most complicated parts of the paper – this work does not have exact content requirements, but a certain structure should be followed. Therefore, we focus on it and try not to change places of what goes in the introduction of a lab report.

So, the sequence is as follows:

  1. Theory
  2. Description of the experimental procedure
  3. Research result
  4. A detailed discussion of the experiment
  5. Summary.

How to write a lab introduction?

Here we clearly and correctly formulate purposes, objectives, chapters, and sections. You cannot put them until after the experiment is over, otherwise, it would be impossible to link the study to the purposes. Remember that the most important aspect of the lab introduction is the usefulness and practicality of the experiment. This section should provide a rationale for the relevance of the work. The relevance of the work is the degree of its importance at the moment and in this situation to solve a certain problem, task, or issue. What does this mean? Justification of the relevance of the introduction of a lab paper is an explanation of the need to study this topic and conduct research on this issue.

The object and subject of the work are conducted for relevance. The object of study is what will be taken for study and research, and usually, the name of the object of study is contained in the answer to the question: what is meant? The subject of the study is a special problem, an individual side of the object, its properties, and features are studied without going beyond the scope of the object under study, which will be investigated in the work. Usually, the name of the subject of research is contained in the answer to the question: what is being studied? In case of so many things to do, write my laboratory report for me looks like a good idea.

The following describes the purpose of the work, i.e. the desired end result, which is planned to be achieved as a result of the work done. To compile the objectives of the work, you can use the following example: take one of the words of the type experiments, show, check, study, determine, etc. You can also look for a sample on the Internet, then add the object of study. After describing the goals, specify the scientific tasks you will need to solve to achieve the goal in the course of the work. Usually, tasks are simply listed and start with the words: measure, find, hold, develop, meet, learn, consider, summarize, etc.

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Lab Report Introduction Example

Ontogenetic color changes are non-reversible colors associated with the normal progressive development of an individual of a species [1]. This distinct feature is evident in insects, reptiles, fishes, and birds. At sexual maturation, it is a useful indicator for identifying suitable mates for organisms. Generally, sexually-matured adults use bright colors to indicate their readiness to mate [2]. This is a direct contrast to dull-colored juveniles that use their color to avoid harassment and predation risk by breeding males. Insects rely on chemical mating cues rather than visual cues. Regardless there are a few exceptions.

In holometabolous insects, like Lepidoptera, dramatic morphological changes make it easy to distinguish between adults and larvae for mating attempts. In diurnal Lepidoptera [3], adult color is significant in the initial phase of mating behavior. However, the process of recognizing maturity is more complicated in hemimetabolous insects due to late instars.

Observed mating behavior of male Largus californicus suggests that they may be using the addition of visual cues to pheromonal cues to distinguish between adults and fifth instars for mating attempts. To be clear, the fifth instars are almost adult-sized and are shiny blue-black. On the other hand, male and female adults are black with orange borders around the thickened portion of the pronotum and hemelytra [4]. Males have been observed to mount adults and persist to release within a few seconds regardless of whether they mount a male or female. However, such behavior has not been observed between adult males and nymphs. This courtship behavior has singled out the initiation of a mating event. It starts with the male approaching the female. When he is about 1cm away, he rapidly waves his antennae, leap onto the female’s back, and hurriedly grabs her with his legs. However, it is possible to still separate them before they mate if their genitals don’t join immediately.

Largus californicus are easy to handle and paint without disrupting their normal behavior since they don’t fly. The experiments aim to determine if males use color cues for dating and if their behavior can explain the role of ontogenetic color change from fifth instars to adult. It includes a test of the null hypothesis that the dorsal color pattern does not affect male mating behavior. This study investigates the impact of ontogenetic color change and mating cues on active bugs active between 1000-1430 hours.

✏️ Explanation of example

The introductory paragraph provided background information on ontogenetic color changes and how it is associated with various species. On a broader scope, we can extend it to reptiles, insects, birds, etc. 

The second paragraph narrowed it down to talk specifically about insects and the complexities of recognizing maturity in various species. The third paragraph states the importance of the study as it concerns mating and courtship behaviors between adult males and nymphs, adult males and females, and one adult male to another. 

The final paragraph mentions the literature review and the type of studies that have been performed on the topic. Also, the last sentence gives the purpose of the study. The numbers in brackets are citation papers that the writer will list in the word cited or reference section to acknowledge their sources.

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Is My Lab Report Introduction Correct?

Even if you are done with the lab reports introduction, don’t forget that there is a lot of work left. The rest of the paper also needs due attention. The introduction is an important part, but there is a correlation between the introduction and the conclusion that you need to complete. In case you don’t have enough time to complete it qualitatively, you can always ask professionals to deal with your academic problems. They know the college lab report format in biology and many other subjects. So, if you can’t start your paper, or you are stuck on something – you can always ask a professional custom lab report writing service!

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