📚 Engineering Paper Writing Framework and Sample for Year 7 SQA | Year 7 SQA 工程：论文写作框架与范文
Writing an engineering paper in Year 7 can feel like a big challenge, but it is simply a way of sharing your design process and results in a clear, logical order. In SQA Engineering, you will often be asked to write a short report or paper that explains how you tackled a problem, what you built or tested, and what you learned. This guide provides a step‑by‑step framework and a full worked example of a paper bridge investigation, so you can see exactly how to structure your own writing and earn top marks.
在 Year 7 写工程论文可能感觉是一项大挑战，但这其实只是用一种清晰、有逻辑的方式分享你的设计过程和结果。在 SQA 工程课程中，你经常需要撰写简短的报告或论文，说明你是如何解决一个问题的、你建造或测试了什么，以及你学到了什么。本指南提供了一个逐步的写作框架，并附有一份完整的纸桥探究范文，让你能清楚了解如何组织自己的写作并获得高分。
1. Understanding the Purpose of an Engineering Paper | 理解工程论文的目的
An engineering paper is not a story – it is a factual record of your engineering work. Its purpose is to communicate your aim, method, results and conclusions so that another person could understand or even repeat your investigation. In SQA assessments, examiners want to see that you can work through the design cycle and then explain your choices with evidence.
工程论文不是故事——它是你工程工作的真实记录。它的目的是传达你的目标、方法、结果和结论，让其他人能理解甚至重复你的探究。在 SQA 评估中，考官希望看到你能走完设计循环，并用证据解释你的选择。
Think of your paper as a tool for sharing knowledge. Whether you designed a simple catapult, tested bridge beams, or programmed a micro:bit controller, the report is where you prove your understanding. The writing must be clear, well‑organised and free from vague language like “it worked well” without data to back it up.
把你的论文看作分享知识的工具。无论你设计了一个简单的投石机、测试了桥梁横梁，还是为 micro:bit 控制器编程，报告都是你证明自己理解的地方。写作必须清晰、条理分明，并且避免使用“效果不错”这样没有数据支撑的模糊语言。
2. The Basic SQA Structure for Year 7 | Year 7 SQA 基本结构
Most Year 7 SQA engineering papers follow a standard structure that mirrors the engineering design process. The core sections are: Title, Abstract, Introduction, Design/Methodology, Results, Discussion, Conclusion, and References. Sometimes you will combine Design and Methodology into one section, or add an Apparatus list. The structure keeps your report logical and easy to mark.
大多数 Year 7 SQA 工程论文都遵循一个标准结构，这个结构与工程设计过程相对应。核心部分包括：标题、摘要、引言、设计/方法、结果、讨论、结论和参考文献。有时你会把设计和和方法合并为一节，或者增加一个设备清单。这个结构让你的报告逻辑清晰且易于评分。
| Section | What it does | 部分 | 作用 |
|---|---|---|---|
| Title | Describes the investigation clearly | 标题 | 清晰描述探究内容 |
| Abstract | Short summary of the whole paper | 摘要 | 整篇论文的简短总结 |
| Introduction | Background, aim and hypothesis | 引言 | 背景、目标和假设 |
| Design/Methodology | How you planned and carried out the work | 设计/方法 | 你如何规划并开展工作 |
| Results | Data, tables and graphs (no opinions) | 结果 | 数据、表格和图表（不包含个人意见） |
| Discussion | Explain what the results mean | 讨论 | 解释结果的含义 |
| Conclusion | Answer the aim and evaluate | 结论 | 回答目标并进行评估 |
| References | List any sources you used | 参考文献 | 列出你使用过的任何资料 |
3. Title and Abstract: First Impressions Count | 标题与摘要：第一印象很重要
Your title should be specific enough that a reader knows exactly what you investigated. Instead of “Bridges”, write “Investigating the Load Capacity of Paper Beam Bridges versus Arch Bridges”. The abstract is a mini‑version of your whole paper – it usually states the aim, method, key result and main conclusion in about 3–4 sentences. It is written last, even though it appears first.
你的标题应该足够具体，让读者确切知道你探究了什么。与其写“桥梁”，不如写“探究纸梁桥与拱桥的承载能力”。摘要是整篇论文的微缩版——它通常用 3–4 句话陈述目标、方法、关键结果和主要结论。摘要虽然放在最前面，但却是最后才写的。
Write in the third person and avoid “I” or “we” – use “The investigation” or “This paper”. For example: “This investigation tested three paper bridge designs. The arch design held an average mass of 2.3 kg, outperforming the beam design. It was concluded that the curved shape distributes force more evenly.”
用第三人称写作，避免使用“我”或“我们”——用“本探究”或“本文”。例如：“本探究测试了三种纸桥设计。拱形设计平均承受了 2.3 kg 的质量，优于梁式设计。结论是弯曲形状能更均匀地分散力。”
4. Introduction: Setting the Scene | 引言：交代背景
The introduction gives the reader all the background they need to understand why your investigation matters. Start with a real‑world connection – for example, explain how engineers design bridges to carry heavy loads. Then narrow down to your specific aim. You should also include a clear hypothesis: what you think will happen and why, based on scientific principles.
引言为读者提供理解你的探究为何重要所需的全部背景。开头可以联系现实世界——例如，解释工程师如何设计能承受重载的桥梁。然后缩小到你具体的目标。你还应该包括一个清晰的假设：基于科学原理，你认为会发生什么以及为什么。
Use technical terms correctly, such as “tension”, “compression”, and “load”. Aim and hypothesis are often written as: “The aim is to determine which paper bridge design supports the greatest mass before failure. It is hypothesised that the arch design will be strongest because the curved structure transfers compression forces to the abutments.”
正确使用专业术语，比如“张力”、“压力”和“荷载”。目标和假设通常这样写：“目标是确定哪种纸桥设计在失效前能支撑最大的质量。假设拱形设计将最坚固，因为弯曲结构能将压力传递到桥台。”
5. Design and Methodology: The Blueprint of Your Work | 设计与方法：你工作的蓝图
This section is where you describe exactly what you did, in a logical order, so that someone else could copy your investigation. Include labelled sketches or diagrams of your designs, and explain how you made each model. Describe the independent variable (the thing you changed, e.g. bridge design), the dependent variable (what you measured, e.g. maximum mass held) and the control variables (things kept the same, e.g. span length, paper type).
这一节里你要按逻辑顺序准确描述你做了什么，让别人可以复制你的探究。包括带有标签的设计草图或示意图，并解释你是如何制作每个模型的。描述自变量（你改变的因素，如桥梁设计）、因变量（你测量的量，如支撑的最大质量）和控制变量（保持不变的因素，如跨度长度、纸张类型）。
Use a step‑by‑step procedure. Write in the past tense and passive voice, for example: “Three paper bridges were constructed using identical A4 sheets of 80 gsm paper. Each bridge had a clear span of 20 cm. Masses were added in 100 g increments until structural failure occurred.”
使用分步操作流程。用过去时和被动语态写，例如：“使用相同的 80 gsm A4 纸建造了三座纸桥。每座桥的净跨为 20 cm。以 100 g 递增添加质量，直到发生结构失效。”
6. Materials and Equipment: What You Used | 材料与设备：你用了什么
A clear list of materials helps your reader assess whether your investigation was fair and controlled. Present this as a bullet list or a simple table. Include quantities and specifications, e.g. “5 sheets of 80 gsm A4 paper”, “PVA glue (30 ml)”, “digital kitchen scale (±1 g)”. For electronic components, state the exact model if relevant.
一份清晰的材料清单可以帮助读者评估你的探究是否公平和受控。可以用项目符号列表或简单的表格来呈现。包括数量和规格，如“5 张 80 gsm A4 纸”、“PVA 胶水（30 ml）”、“厨房电子秤（±1 g）”。对于电子元件，如有必要请注明确切型号。
Always list safety equipment too, even for a classroom activity. For a paper bridge test you might note: “Safety goggles were worn when adding masses; a tray was placed underneath to catch falling weights.”
即使是课堂活动，也一定要列出安全设备。对于纸桥测试，你可以注明：“添加重物时佩戴了护目镜；下方放置了托盘接住掉落的砝码。”
7. Results and Observations: Showing What Happened | 结果与观察：展示发生了什么
Results should be presented clearly, without any interpretation. Use tables with headings and units. For example:
结果应该清晰地呈现，不加任何解释。使用带表头和单位的表格。例如：
| Design | Trial 1 (g) | Trial 2 (g) | Trial 3 (g) | Mean (g) |
|---|---|---|---|---|
| Beam | 1200 | 1350 | 1280 | 1277 |
| Arch | 2300 | 2450 | 2210 | 2320 |
| Truss | 1900 | 2050 | 1980 | 1977 |
You can also include a bar chart or line graph, and you must number and caption every figure and table, e.g. “Figure 1: Mean maximum load for each bridge design”. Do not discuss “why” here – only “what”.
你还可以加入条形图或折线图，并且必须为每个图表编号并添加标题，比如“图 1：每种桥设计的平均最大荷载”。这里不要讨论“为什么”——只写“是什么”。
8. Discussion: Explaining the Meaning | 讨论：解释意义
The discussion is where you interpret your results and link them back to engineering principles. Start by stating if your hypothesis was supported or not. Then explain the trends using concepts like force distribution, material properties, or structural efficiency. For the bridge example you could write: “The arch design performed best because its curved shape converts vertical loads into compressive forces along the curve, which paper can withstand better than tension.”
讨论部分是你解读结果并将其与工程原理联系起来的地方。首先要说明你的假设是否得到支持。然后用力的分布、材料特性或结构效率等概念来解释趋势。对于桥梁的示例，你可以写：“拱形设计表现最好，因为它的弯曲形状将竖向荷载转化为沿曲线的压力，而纸张承受压力的能力优于承受拉力。”
Identify any anomalies or unexpected results, and suggest reasons (e.g. uneven glue application, slight differences in paper fibre direction). Also discuss limitations of your method and how they could have affected the reliability of your data.
找出任何异常或意外的结果，并提出原因（例如涂胶不均匀、纸张纤维方向的微小差异）。还要讨论你方法的局限性，以及它们可能如何影响数据的可靠性。
9. Conclusion and Evaluation: Wrapping It Up | 结论与评估：总结收尾
The conclusion must directly answer the aim. Keep it short and precise. For instance: “The investigation found that the arch paper bridge supported the greatest mean load of 2320 g, thus accepting the hypothesis. The truss design was the second strongest, while the simple beam failed at the lowest load.”
结论必须直接回答目标。要简短精确。例如：“本探究发现拱形纸桥支撑了最大的平均荷载 2320 g，因此接受假设。桁架设计强度次之，而简单梁式设计在最低荷载下失效。”
Then evaluate the whole project. Suggest improvements (e.g. test more designs, use a humidity‑controlled environment) and propose further investigations (e.g. test different arch heights or materials). This shows higher‑order thinking that SQA examiners value.
然后评估整个项目。提出改进建议（例如测试更多设计、使用湿度受控环境）并建议进一步研究（例如测试不同的拱高或材料）。这能展示 SQA 考官重视的高阶思维。
10. References and Appendices: Giving Credit | 参考文献与附录：注明出处
Even in Year 7, you should list any books, websites or videos that helped you understand the science. Use a simple format: Author (year) Title, Source. For example: “BBC Bitesize (2024) Forces and Structures. Available at: http://www.bbc.co.uk/bitesize.” Appendices can include large tables, design sketches or photographs that would clutter the main report.
即使在 Year 7，你也应该列出帮助你理解科学原理的任何书籍、网站或视频。使用简单的格式：作者（年份）标题，来源。例如：“BBC Bitesize（2024）《力与结构》。可访问：www.bbc.co.uk/bitesize。”附录可以包含会占据主报告篇幅的大表格、设计草图或照片。
11. Worked Example: Designing a Paper Bridge | 范文：设计一座纸桥
The following is a complete Year 7 SQA engineering paper written to the framework above. Read it carefully to see how all the sections fit together.
以下是一篇按照上述框架撰写的完整 Year 7 SQA 工程论文。仔细阅读，看看所有部分是如何组合在一起的。
Title: Investigating the Load-Bearing Capacity of Beam, Truss and Arch Paper Bridges
标题：探究梁式、桁架和拱形纸桥的承载能力
Abstract: This engineering investigation compared the maximum load that beam, truss and arch bridges made from paper could support. Each design was tested three times with a 20 cm span. The arch bridge held a mean mass of 2320 g, the truss bridge 1977 g and the beam bridge 1277 g. It was concluded that the arch shape is the most efficient for distributing compressive forces in paper structures.
摘要：本工程探究比较了用纸张制作的梁式、桁架和拱桥所能支撑的最大荷载。每种设计在 20 cm 跨度下测试三次。拱桥平均支撑质量 2320 g，桁架桥 1977 g，梁桥 1277 g。结论是拱形在纸结构中分配压力方面效率最高。
1. Introduction: Bridges must carry heavy traffic without collapsing. Engineers choose different shapes, such as beams, trusses and arches, to manage forces. In paper bridges, the material is weak in tension but stronger in compression. The aim of this investigation was to find out which shape of paper bridge supports the greatest mass. It was hypothesised that the arch bridge would be the strongest because its curved form turns downward forces into compressive forces that travel to the supports.
1. 引言：桥梁必须承载繁忙的交通而不倒塌。工程师选择不同的形状，如梁、桁架和拱，来应对力。在纸桥中，材料抗拉弱而抗压相对较强。本探究的目的是找出哪种形状的纸桥能支撑最大的质量。假设拱桥将是最坚固的，因为它的弯曲形状将向下的力转化为传递到支座的压缩力。
2. Materials and Method: Five identical sheets of 80 gsm A4 paper, 30 ml of PVA glue, a digital scale (±1 g), a 20 cm gap testing rig, 100 g mass increments, and safety goggles were used. Three bridge designs were built: a flat beam, a truss with triangular side supports, and an arch. All had the same mass of paper. Each bridge was placed across a 20 cm span and masses were added gently at the centre until the structure broke. The procedure was repeated three times per design to ensure reliability.
2. 材料与方法：使用了五张相同的 80 gsm A4 纸、30 ml PVA 胶水、一台电子秤（±1 g）、一个 20 cm 跨距测试架、100 g 增量砝码和护目镜。建造了三种桥梁设计：平板梁、带三角形侧向支撑的桁架和拱。所有设计使用相同质量的纸。每座桥放置在 20 cm 的跨度上，在中心轻轻添加砝码直到结构损坏。每种设计程序重复三次以保证可靠性。
3. Results:
3. 结果：
| Design | Trial 1 (g) | Trial 2 (g) | Trial 3 (g) | Mean (g) |
|---|---|---|---|---|
| Beam | 1200 | 1350 | 1280 | 1277 |
| Truss | 1900 | 2050 | 1980 | 1977 |
| Arch | 2300 | 2450 | 2210 | 2320 |
Figure 1 shows a bar chart of the mean maximum loads. The arch design clearly supported the heaviest load, while the beam design was the weakest.
图 1 显示了平均最大荷载的条形图。拱形设计明显支撑了最重的荷载，而梁式设计最弱。
4. Discussion: The results supported the hypothesis. The arch bridge distributed the weight along the curve, turning the downward force into compression. Paper can resist being squashed much better than it can resist being pulled apart, which is why the arch worked so well. The truss bridge was also quite strong because its triangles stopped the paper from bending. One anomaly was Trial 2 for the arch, which was slightly higher than the other two – perhaps because the glue joints were fresher. A limitation was that air humidity was not controlled, which might have weakened the paper fibres.
4. 讨论：结果支持了假设。拱桥沿曲线分配重量，将向下的力转化为压力。纸张抗压能力远优于抗拉能力，这就是拱桥表现如此出色的原因。桁架桥也相当坚固，因为它的三角形防止了纸张弯曲。一个异常点是拱桥的第二次试验比其他两次略高——可能是因为胶水接缝当时更新鲜。一个局限是空气湿度没有受控，这可能会削弱纸纤维。
5. Conclusion and Evaluation: The aim was met: the arch paper bridge held the greatest mean load (2320 g), followed by the truss and the beam. The hypothesis was accepted. In the future, testing more designs (such as a suspension bridge with string) and using identical drying times would improve the investigation. The project showed that shape is a powerful tool in engineering with weak materials.
5. 结论与评估：目标已实现：拱形纸桥承受的平均荷载最大（2320 g），其次是桁架和梁。假设被接受。将来，测试更多设计（例如带绳的悬索桥）并使用相同的干燥时间将改善探究。本项目表明，在使用薄弱材料时，形状是工程中的强大工具。
References: BBC Bitesize (2024) Structures. Available at: http://www.bbc.co.uk/bitesize (Accessed: 12/09/2024).
参考文献：BBC Bitesize（2024）《结构》。可访问：www.bbc.co.uk/bitesize（访问日期：2024 年 9 月 12 日）。
12. Analysis and Tips for Your Own Paper | 范文分析与写作技巧
Look at how the worked example uses the framework. The title is specific, the abstract gives a complete snapshot, and every claim in the discussion is backed by numbers from the results table. Notice that the writing stays objective – it never says “I liked the arch bridge best” but instead focuses on data and forces.
看看范文是如何运用这个框架的。标题很具体，摘要给出了完整的快照，讨论中的每一个主张都有结果表格里的数字支撑。注意写作保持客观——它从不说“我最喜欢拱桥”，而是专注于数据和力。
When you write your own paper, avoid these common mistakes: leaving numbers without units, forgetting to label axes on graphs, writing the conclusion as a new idea, and using “I” or “we” too much. Instead, check that your results section only reports facts, and your discussion explains the “why”. Always refer to your own data, and if it disagrees with your hypothesis, that is fine – science is about finding out, not being right every time.
当你撰写自己的论文时，要避免这些常见错误：数字不带单位、忘记给图表坐标轴加标签、把结论写成一个新想法，以及过多使用“我”或“我们”。相反，要检查你的结果部分只报告事实，你的讨论部分解释“为什么”。始终引用你自己的数据，如果数据与你的假设不符，也没关系——科学重在发现，而不是每次都正确。
Finally, always leave time to proofread. Read your paper aloud to catch awkward sentences. Ask a friend to see if they could repeat your investigation just from your method section. Good engineering writing is clear, concise and evidence‑based.
最后，务必留出时间校对。大声朗读你的论文以找出别扭的句子。请一位朋友看看他们能否仅根据你的方法部分就重复你的探究。好的工程写作是清晰、简洁且基于证据的。
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