HomeCasa Write a lab report from your own experimental data
Structure a complete lab report around your measurements: aim, method, tables, worked calculations, error analysis, discussion and conclusion, without changing or inventing data. Designed for ChatGPT, Claude, Gemini and Microsoft Copilot. It includes 4 customizable variables and you can copy it for free in one click.
Intermediate · Text · Pending editorial review
Prompt
Act as a lab instructor who grades lab reports and wants the student to understand each section, not just hand it in.
Lab details:
- Experiment and aim: {{experiment}}
- Measured data (as recorded, with units): {{data}}
- Level: {{level}}
- Formatting or citation rules: {{style}}
Deliverables:
1. An informative title and a 100-150 word abstract (aim, method, main result, conclusion).
2. Introduction: the theory needed to understand the experiment, with reference gaps marked [FILL IN: reference].
3. Materials and methods in the past tense, with enough detail for someone else to repeat the experiment.
4. Results: well-labeled tables with my data, derived calculations showing the formula and one worked example step by step, mean and standard deviation where there are repeat trials, and the recommended graph (axes, units, type).
5. Error analysis: sources of systematic and random error, instrument uncertainty and how it propagates to the final result.
6. Discussion: comparison with the theoretical or expected value (percent error where relevant), possible reasons for differences and improvements to the method.
7. A conclusion that answers the aim in 3-4 sentences.
8. A pre-submission checklist (significant figures, units, table and figure numbering, references).
Constraints:
- Do not change, misleadingly round, complete or invent data. If a value looks like an outlier, flag it and suggest how to handle it, but do not delete it.
- If a calculation needs a value I have not given (such as a theoretical value), ask me for it or mark it [FILL IN].
- Double-check your calculations and show them so I can verify them.
- Remind me that the text is a learning draft and that I must follow my school's academic integrity rules on AI use.
Format: standard lab report headings, tables in a copy-friendly format and calculations in separate blocks.How to use it
Paste your data exactly as you recorded it, with units and repeat trials. Check every calculation with your calculator or spreadsheet and rewrite the discussion in your own words. Check first whether your school allows AI help on lab reports.
Usage example
Experiment: measuring g with a simple pendulum · Data: 5 lengths, 3 timings of 10 swings each · Level: high school · Style: APA 7.
Sample output
You haven't pasted the measured times yet, so results are left as [FILL IN]. This is a learning draft: follow your school's academic integrity rules on AI use.
Title
Determining the acceleration due to gravity with a variable-length simple pendulum
Results: calculations
For each length, the period is the time for 10 swings divided by 10:
T = t₁₀ / 10
For a simple pendulum with small swings, T² = (4π² / g) · L. Plotting T² (s²) against L (m) gives a straight line with slope m = 4π²/g, so:
g = 4π² / m
Worked example (L = 0.40 m):
- Mean of the three t₁₀ trials: [FILL IN] s
- T = [FILL IN] / 10 = [FILL IN] s
- T² = [FILL IN] s²
Table 1. Measured times
| L (m) | t₁₀ trial 1 (s) | trial 2 (s) | trial 3 (s) | Mean (s) | SD (s) | T² (s²) |
|---|---|---|---|---|---|---|
| 0.40 | [FILL IN] | |||||
| 0.60 | [FILL IN] |
Discussion
Percent error: |g(exp) − g(theory)| / g(theory) × 100, with g(theory) = [FILL IN: value your teacher specifies, e.g. the local value]…
Key facts
- Category
- Science · Experiment design
- Output type
- Text
- Level
- Intermediate
- Designed for
- ChatGPT, Claude, Gemini and Microsoft Copilot
- Verified in
- Pending editorial verification
- Variables
- Experiment and aim, Measured data, Level and Formatting or citation rules
- Language
- English
- Price
- Free, no sign-up
- Updated
- Nov 7, 2026
Frequently asked questions
What do I do with a data point that does not fit?
Do not just delete it. Flag it, look for a likely cause (misreading, setup problem) and, if you exclude it, explain why and show the result with and without it.
Can I submit the text as it is?
It is not a good idea. Use it as a structure guide and a calculation check, then write it in your own words following your school's rules on AI use.
What is this prompt for?
Structure a complete lab report around your measurements: aim, method, tables, worked calculations, error analysis, discussion and conclusion, without changing or inventing data.
Which AI tools does it work with?
It is designed for ChatGPT, Claude, Gemini and Microsoft Copilot. We have not verified it in these tools yet, so results may vary between them.
How do I customize the prompt?
Click “Customize” and fill in the variables (Experiment and aim, Measured data, Level and Formatting or citation rules). The text updates instantly and you can then copy it in one click. Values are stored only in your browser.
Do I need experience to use it?
It is intermediate: it helps to know the topic so you can provide good context and review the result critically.
Is this prompt free?
Yes. Every HomeCasa Prompts prompt is free, with no sign-up or subscription. You can also use them in professional projects.
Can I trust the AI output?
Treat it as a high-quality draft: always check data, figures and important claims before publishing or making decisions.