Course guide

Writing in science class

Science writing is about evidence and explanation. The key decision is whether your teacher wants a full lab report or a shorter claim-evidence-reasoning response.

Grades 9-12 · Biology, Chemistry, Physics, Earth Science

Break down your science prompt

Paste the prompt and BetterPaper will identify whether you need a lab report, CER response, or another planning move.

Match your prompt to the assignment type

Look for the prompt language first. The same course can ask for very different writing moves.

Lab report

purposehypothesisprocedureresultsdiscussionconclusion

A formal record of the experiment that separates what happened from what the results mean.

First move: Sort your information into sections before writing any paragraphs.

Use guide

CER response

claim, evidence, reasoninguse data to supportscientific explanation

A direct answer, specific data, and reasoning that names the scientific principle connecting them.

First move: Write the claim in one sentence, then choose the single strongest data point.

Use guide

Rubric terms that matter

Results

The data and observations only.

Your move: Do not explain why the results happened in this section.

Discussion

The interpretation of the results, including error analysis.

Your move: Explain patterns, limits, and possible sources of error.

Reasoning

The scientific principle that connects evidence to the claim.

Your move: Name the concept, not just the data.

Common traps in this course

Putting interpretation in the Results section.

Fix: Keep Results factual; move meaning and explanation to Discussion.

Using opinions as evidence in CER.

Fix: Use measurements, observations, or class data only.

Restating the evidence as reasoning.

Fix: Explain the scientific idea that makes the evidence prove the claim.

Frequently asked questions

What is the difference between a lab report and a CER response?

A lab report documents a full experiment in sections. A CER response answers one scientific question with a claim, evidence, and reasoning.

Can I explain results in the Results section?

No. Results should report data and observations. Explanation belongs in the Discussion or reasoning section.

What counts as evidence in science writing?

Measurements, observations, graphs, tables, and experimental data count as evidence. Opinions and guesses do not.

Use the exact prompt your teacher gave you

Paste the prompt and BetterPaper will identify whether you need a lab report, CER response, or another planning move.

Choose the right guide

HGuideHow to write a lab reportUnderstand the sections of a lab report, how to present your data, and how to draw a conclusion from results. BetterPaper helps you plan; you write it.HGuideHow to write a CER responseUnderstand the claim, evidence, reasoning structure, how to back a claim with data, and how to explain your thinking. You write the response yourself.

Key writing concepts

These terms show up in prompts, rubrics, and teacher feedback.

WConceptHow to use evidence in an essayEvidence is only as strong as the analysis that follows it. Learn the Introduce-Evidence-Analysis pattern for integrating quotes, statistics, and examples effectively.WConceptWhat does "analyze" mean in an essay prompt?Analyze means break something into its parts and explain how they work — not summarize what happened. Learn the difference and how to do it in English, history, and science.

Keep going

If you ran an experiment

Use these when your writing is based on procedure, data, and results.

HGuideHow to write a lab reportUnderstand the sections of a lab report, how to present your data, and how to draw a conclusion from results. BetterPaper helps you plan; you write it.WConceptHow to use evidence in an essayEvidence is only as strong as the analysis that follows it. Learn the Introduce-Evidence-Analysis pattern for integrating quotes, statistics, and examples effectively.

If you are answering a focused science question

Use these when the prompt wants a claim, data, and reasoning.

HGuideHow to write a CER responseUnderstand the claim, evidence, reasoning structure, how to back a claim with data, and how to explain your thinking. You write the response yourself.WConceptWhat does "analyze" mean in an essay prompt?Analyze means break something into its parts and explain how they work — not summarize what happened. Learn the difference and how to do it in English, history, and science.