Free lab report template. The standard scientific IMRaD structure — abstract, introduction, materials & methods, results, discussion and conclusion — with guidance for each section. Copy it for biology, chemistry, physics or engineering.
How to use this template
Results report, Discussion interprets
The most common lab-report error is interpreting results in the Results section. Keep Results purely factual (what happened) and save all interpretation, comparison and explanation for the Discussion.
Methods must be reproducible
Write the method so another student could repeat your experiment exactly. Use the past tense and passive voice, and include quantities, equipment and controlled variables.
Address sources of error
High-scoring discussions honestly evaluate limitations and likely sources of error, and explain how they might have affected the results — this shows scientific maturity.
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Frequently asked questions
IMRaD stands for Introduction, Methods, Results and Discussion — the standard structure for scientific lab reports, usually preceded by a title and abstract and followed by a conclusion and references.
A 150–250 word summary of the aim, the method, the key result and the main conclusion. Write it last, once the rest of the report is complete.
Results state what you found, objectively, with tables and figures. Discussion interprets those findings — whether they support the hypothesis, how they compare with the literature, and what limitations apply.
Most scientific lab reports use the past tense and passive voice (“the solution was heated”) rather than the first person, though some courses now accept “we”. Check your department’s guidance.
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