Peer Review and Revise Conclusions
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Learning Objectives
- 1Identify the marks of a strong conclusion versus a weak one
- 2Give honest, specific feedback on a peer draft conclusion
- 3Revise a draft conclusion based on peer feedback and rubric criteria
- 4Strengthen claims by tightening evidence, reasoning and limits
Mini Lesson
A first draft of a science conclusion is rarely the best draft. Even careful scientists hand their conclusions to other scientists for review before publishing — this is called peer review. A good peer reviewer is honest, specific, and kind. The goal is not to prove the writer wrong; the goal is to make the conclusion stronger so the science it carries is clearer to everyone who reads it.
What a Strong Conclusion Has
- A clear claim that answers the original science question.
- Specific evidence with numbers and units from the trials.
- Reasoning that names the science rule linking evidence to claim.
- A statement of limits — what the data does not prove.
- One next step the writer would test in a future experiment.
What a Weak Conclusion Looks Like
- Drifts away from the science question and tells a story instead.
- Uses opinion words like "I think", "I feel", or "everyone knows".
- Skips the data — no numbers, no units, no trial counts.
- Claims more than the evidence shows (one trial, big universal claim).
- Hides results that disagree with the hoped-for outcome.
How to Run a Peer Review
- Read the whole draft once without writing anything. Get the big picture first.
- Read it again with the rubric: claim, evidence, reasoning, limits, next step.
- For each rubric line, mark one strength and one specific gap. No vague comments.
- Quote a sentence from the draft when you point at a problem — do not paraphrase.
- Hand back the marked draft and explain your top two suggestions out loud.
How to Revise After Feedback
When you get your draft back, do not get defensive. Read every comment first, then sort the suggestions: which ones add data the conclusion was missing, which ones tighten the reasoning, which ones cut content that wandered off topic. A revision is not a rewrite — it is a sharper version of the same idea, with the gaps your reviewer spotted now filled in.
- Add the specific numbers and units the reviewer flagged as missing.
- Replace opinion words with what the data actually shows.
- Tighten reasoning by naming the exact science rule (photosynthesis, friction, etc.).
- Add a one-sentence limit: what your data does not prove.
- End with one concrete next step for a follow-up experiment.
Draft conclusion (peer review needed): "I think plants like sunlight more. Mine grew taller in the window so plants need light a lot. Everyone knows this."
Rewrite this draft into a strong conclusion using the rubric.
The revised version drops the opinion words, names specific data, points at the science rule, admits the limits of one trial, and proposes a real next step.
Tip: be the reviewer you would want to get. Honest, specific, kind. "Your reasoning is strong but your claim talks about all plants when your data is only one species" is far more useful than "good job" or "this is bad".
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