📚 How to Write a Science Lab Report: Framework and Sample | 科学实验报告写作指南：框架与范文
Writing a clear lab report is a key skill in Year 7 AQA Biology. It helps you communicate what you did, why you did it, what you observed and what it all means. A well-structured report also makes it easier for someone else to understand and repeat your investigation. This article will guide you through a simple but effective framework, using plenty of examples and a full sample report on heart rate and exercise.
写一份清晰的实验报告是七年级 AQA 生物的重要技能。它能帮助你传达你做了什么、为什么这么做、观察到了什么以及这一切意味着什么。一份结构良好的报告还能让别人更容易理解你的探究，并重复你的实验。本文将通过大量示例和一份关于心率与运动的完整范文，带你掌握一个简单但有效的写作框架。
1. The Purpose of a Science Report | 科学报告的目的
A science report is not just a record of numbers; it tells the story of an investigation from question to answer. In Year 7, your teacher expects you to show that you can plan a fair test, collect reliable data and think about what the results suggest. Getting the structure right early will help you in every science subject right up to GCSE and beyond.
科学报告不仅仅是记录数字；它讲述的是从问题到答案的整个探究过程。在七年级，老师希望你能展示你会设计公平实验、收集可靠的数据并思考结果说明了什么。尽早掌握报告结构，对你今后直到 GCSE 乃至更高年级的每一门科学学科都会有帮助。
2. The Structure of a Lab Report | 实验报告的结构
A standard Year 7 biology lab report can be divided into the following sections: Title, Aim, Hypothesis, Equipment, Method, Results (with a table and sometimes a graph), Conclusion and Evaluation. You might also include a brief prediction. Learning to use these headings will make your writing much clearer and easier to mark.
一份标准的七年级生物实验报告可以分为以下几个部分：标题、目的、假设、器材、方法、结果（包括表格，有时还有图表）、结论和评价。你可能还要写一个简单的预测。学会运用这些小标题，会让你的报告清晰得多，也更容易评分。
3. Title and Aim | 标题与目的
The title should describe the investigation in a few words, often starting with 'Investigating...' or 'How does... affect...?'. For example, 'Investigating how exercise affects heart rate' is a suitable title for a biology experiment. The aim is a clear statement of what you are trying to find out. It often starts with 'To investigate...' or 'To find out...'.
标题要用几个词描述这项探究，常以“探究……”或“……如何影响……？”开头。比如，“探究运动如何影响心率”就是一个合适的生物实验标题。目的则清晰说明你想要探究的内容，常用“旨在探究……”或“为了弄清……”开头。
Example:
例子：
Title: How does the duration of exercise affect heart rate?
标题：运动时长如何影响心率？
Aim: To investigate the relationship between exercise time and heart rate in a person.
目的：旨在探究运动时间与人心率之间的关系。
4. Hypothesis | 假设
A hypothesis is an educated guess about what you think will happen, supported by scientific reasoning. It is often written as an 'If... then... because...' statement. For the heart rate investigation, a hypothesis could be: 'If I exercise for longer, then my heart rate will increase because muscles need more oxygen and glucose for respiration, so the heart pumps faster.'
假设是基于科学推理对实验结果的合理猜测。它通常写成“如果……那么……因为……”的形式。以心率探究为例，假设可以写成：“如果我运动更长时间，那么我的心率就会升高，因为肌肉进行呼吸作用需要更多氧气和葡萄糖，所以心脏跳动得更快。”
5. Equipment List | 器材清单
Always list all the equipment you used, including the sizes and quantities where appropriate. This helps someone else repeat your experiment exactly. Use bullet points for clarity.
请务必列出所有你使用的器材，包括合适的尺寸和数量。这样别人才能完全照你的方式重复实验。用项目符号列出会更清晰。
Example:
例子：
- Stopwatch (measuring in seconds)
- Heart rate monitor or the ability to measure pulse manually
- Exercise mat or safe floor space
- Pen and paper for recording results
- Calculator (optional)
- 秒表（以秒为单位）
- 心率监测器或手动测量脉搏的方法
- 运动垫或安全的活动空间
- 记录结果的笔和纸
- 计算器（可选）
6. Method (Procedure) | 方法（步骤）
Write the method as a numbered list of clear, concise instructions. Use imperative verbs like 'measure', 'record', 'repeat'. Mention how you will control variables to ensure a fair test – for this experiment, the control variables could be the type of exercise, the person tested and the rest time between trials.
将方法写成一组编号的、简洁明了的步骤。使用祈使动词，如“测量”“记录”“重复”。要提及如何控制变量以确保公平实验——本实验中，控制变量可以是运动类型、被测试的人以及各次试验之间的休息时间。
Sample method:
方法示例：
- Measure the resting heart rate of the person for 1 minute and record it.
- Perform star jumps for 1 minute. Immediately measure and record the heart rate.
- Rest for 3 minutes until heart rate returns to resting.
- Repeat steps 2-3 for 2 minutes, 3 minutes and 4 minutes of exercise.
- Repeat the whole investigation twice more to get three readings for each time.
- 测量该人员安静状态下的心率为1分钟，并记录。
- 做开合跳运动1分钟。结束后立即测量并记录心率。
- 休息3分钟，直至心率恢复到安静水平。
- 分别以2分钟、3分钟和4分钟的运动时间重复步骤2-3。
- 整个探究过程再重复两次，为每个运动时长获取三个读数。
7. Results: Tables and Graphs | 结果：表格与图表
Present your raw data in a neat table with clear headings and units, such as 'Exercise time (min)' and 'Heart rate (bpm)'. Include columns for mean values if you repeated measurements. A results table makes it easy to spot patterns.
将原始数据整齐地呈现在表格中，带清晰表头和单位，例如“运动时间（分钟）”和“心率（次/分）”。如果做了重复测量，要包含平均值列。结果表能让规律一眼便知。
Example table:
表格示例：
| Exercise time (min) | Heart rate – Trial 1 (bpm) | Trial 2 (bpm) | Trial 3 (bpm) | Mean heart rate (bpm) |
|---|---|---|---|---|
| 0 (rest) | 72 | 70 | 74 | 72 |
| 1 | 100 | 104 | 99 | 101 |
| 2 | 118 | 122 | 120 | 120 |
| 3 | 135 | 130 | 128 | 131 |
| 4 | 142 | 148 | 145 | 145 |
For a graph, put the independent variable (what you change, i.e. exercise time) on the horizontal x-axis and the dependent variable (what you measure, i.e. mean heart rate) on the vertical y-axis. Use a line graph or bar chart as appropriate, label axes clearly and give the graph a title.
绘制图表时，将自变量（你改变的量，即运动时间）放在横轴（x轴）上，将因变量（你测量的量，即平均心率）放在纵轴（y轴）上。根据情况选用折线图或条形图，清晰标注坐标轴，并为图表加上标题。
8. Conclusion | 结论
In the conclusion, state what you found out by referring directly to the data. Say whether your data supports the hypothesis. For example: 'The mean heart rate increased from 72 bpm at rest to 145 bpm after 4 minutes of exercise. This supports my hypothesis that longer exercise causes a higher heart rate because the muscles need more oxygen for respiration.' Do not bring in new information or personal opinions.
在结论部分，直接引用数据来说明你的发现，并指出数据是否支持假设。例如：“平均心率从安静状态下的72次/分上升到运动4分钟后的145次/分。这支持了我的假设，即运动时间越长，心率越高，因为肌肉进行呼吸作用需要更多氧气。”不要引入新信息或个人观点。
9. Evaluation | 评价
An evaluation reflects on the reliability of the results and the fairness of the method. Comment on any anomalous results (odd results that do not fit the pattern) and suggest improvements. For instance: 'The readings for 3 minutes were quite consistent, but the Trial 2 reading for 1 minute was slightly lower. This might be because the participant did not exercise as vigorously. To improve reliability, we could use a heart rate monitor instead of manual counting and ensure the same pace of exercise each time.'
评价部分要反思结果的可靠性和方法的公正性。要评论任何异常数据（即不符合整体规律的数据），并提出改进建议。例如：“3分钟的数据非常一致，但1分钟时第二次试验的数据略低，这可能是因为被试者运动不够用力。为提高可靠性，我们可以用心率监测器代替人工计数，并确保每次运动节奏一致。”
10. Full Sample Lab Report: Heart Rate and Exercise | 完整范文：心率与运动
Below is a complete lab report that follows the framework. Use it as a model for your own investigations.
以下是一份遵循上述框架的完整实验报告。请把它作为你自己探究的范文。
Title: Investigating how exercise time affects heart rate
标题：探究运动时间如何影响心率
Aim: To find out if a longer period of exercise leads to a greater increase in heart rate.
目的：旨在查明较长运动时间是否会导致心率更大幅度上升。
Hypothesis: If I exercise for longer, then my heart rate will be higher because the muscles demand more oxygen for aerobic respiration, so the heart must beat faster to deliver it.
假设：如果我运动更长时间，那么我的心率就会更高，因为肌肉进行有氧呼吸需要更多氧气，心脏必须跳动得更快以输送氧气。
Equipment:
器材：
- Stopwatch (±0.01 s)
- Heart rate sensor (or finger on wrist to count pulse)
- Exercise mat
- Data recording sheet
- 秒表（精度±0.01秒）
- 心率传感器（或用手指按手腕测量脉搏）
- 运动垫
- 数据记录表
Method:
方法：
- Measure resting heart rate for 1 min and record.
- Perform star jumps at a steady pace for 1 min. Immediately measure and record heart rate.
- Rest for 3 min or until resting rate is reached.
- Repeat the exercise for 2 min, 3 min and 4 min, measuring pulse each time.
- Carry out three complete trials to calculate mean values.
- 测量安静心率1分钟并记录。
- 以稳定节奏做开合跳1分钟，立刻测量并记录心率。
- 休息3分钟或直至恢复到安静心率。
- 分别以2分钟、3分钟和4分钟重复该运动，每次测量脉搏。
- 完成三次完整试验，以计算平均值。
Results:
结果：
(Table as shown in Section 7 above. The graph of mean heart rate against exercise time shows a steady upward trend, nearly a straight line from 1 min to 4 min.)
（表格如上文第7节所示。平均心率与运动时间的关系图呈稳定上升趋势，从1分钟到4分钟接近一条直线。）
Conclusion:
结论：
The mean heart rate rose from 72 bpm (rest) to 145 bpm (4 min). This supports the hypothesis that increased exercise duration raises heart rate. The rise happens because muscles need more oxygen for respiration, so the heart pumps faster.
平均心率从安静时的72次/分上升到4分钟时的145次/分。这支持了“运动时间延长会使心率升高”的假设。心率升高是因为肌肉呼吸作用需要更多氧气，所以心脏泵血更快。
Evaluation:
评价：
The three trials showed good consistency, but the 2-min trial 2 gave a reading of 122 bpm, which was slightly higher than the others. This may have been due to insufficient rest before that trial. Next time, I would monitor resting heart rate more carefully and use a metronome to keep the jumping pace identical. Overall, the data is reliable enough to support the conclusion.
三次试验的一致性良好，不过2分钟时的第二次试验读数为122次/分，略高于其他数据。这可能是因为该次试验前休息不足。下次我会更仔细地监控安静心率，并使用节拍器保持完全一致的开合跳节奏。总体而言，数据足够可靠，能够支持结论。
11. Common Mistakes to Avoid | 常见错误避免
Many Year 7 students forget to include units in tables, which makes the numbers meaningless. Another common slip is writing a hypothesis as a question or a simple guess without 'because'. Also, do not confuse the conclusion with the evaluation; the conclusion simply states the pattern, while the evaluation judges the experiment's quality.
许多七年级学生忘记在表格中标注单位，这会让数字失去意义。另一个常见错误是把假设写成疑问句，或一个缺少“因为”的简单猜测。此外，不要把结论和评价混淆；结论只陈述规律，评价则判断实验质量。
12. Final Tips and Practice | 最后建议和练习
Before writing your next report, practice by drafting each section for a simple experiment you do at home, such as comparing how fast ice melts in different places. Use the headings in this guide and check that each part answers its own key question: What am I trying to find out? (Aim) What do I think will happen and why? (Hypothesis) How can I make it a fair test? (Method) What do my numbers show? (Results) What does that tell me? (Conclusion) How good are my results? (Evaluation).
在撰写下一份报告前，可以先找一个在家就能做的小实验来练习草拟每个部分，比如比较不同地方冰块融化的快慢。运用本指南的小标题，并检查每个部分是否回答了关键问题：我要探究什么？（目的）我认为会发生什么，为什么？（假设）怎样才算公平实验？（方法）数字显示了什么？（结果）这说明了什么？（结论）我的结果有多可靠？（评价）。
Published by TutorHao | Biology Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
或截图后用「扫一扫 → 相册」选择本图