Y09W19PA - What Nuclear Energy Is

This week you wrote an informative piece explaining what nuclear energy is. Now you'll read another student's piece and judge how strong it is. Working through how assessors evaluate informative writing sharpens your ability to apply the same lens to your own work.

Part 1

The Assessor Scorecard for

Informative – Informative piece

Informative writing explains a topic to readers who want to understand it. The writer breaks complex ideas into clear parts and orders them logically. Check each strand below.

Ideas & Content

Key concepts are identified and defined; technical terms are explained. Examples make abstract ideas concrete — how atoms split, why splitting creates heat. Key arguments for and against are presented in balance, without one side overwhelming the other. Depth of explanation shows the writer has done their homework.

  • Defined concepts: explain the technical ideas before using them.

Structure & Cohesion

An introduction states the topic and what will be covered. Body paragraphs each focus on a key idea, with clear topic sentences and transitions. A conclusion ties the information together. Signposting helps the reader track ideas through the piece.

  • Guided coverage: introduces the topic, then develops each part clearly.

Audience & Purpose

Audience knowledge level shapes vocabulary and depth — peers, younger students, or general readers. For Year 9 students, technical jargon is avoided but accuracy stays. Analogy ('uranium atoms are like packed springs') can explain new concepts. Tone is neutral and trustworthy; the reader needs to believe the writer knows the topic.

  • Audience level: decides how much detail and explanation each term needs.

Language Choices

Technical terms are defined when used. Active voice ('scientists split uranium') feels more engaging than too much passive. Phrases like 'First', 'Another reason', 'In contrast' guide the reader. Short, clear sentences beat long, complex ones when explaining unfamiliar ideas.

  • Accessible terms: make technical vocabulary useful rather than confusing.

Conventions

Spelling, punctuation and grammar are accurate. Sentence construction is varied and mostly error-free. Paragraphing is clear and logical. Proper nouns and technical terms are capitalised correctly.

  • Scientific accuracy: keeps facts, mechanics and spelling trustworthy.

Part 2

Today’s Marking Targets

Task in one sentence

Write a three-paragraph informative piece explaining what nuclear energy is, how it is produced, and the main arguments for and against its use.

Let’s Focus

Three strands matter most this week: Ideas & Content, Structure & Cohesion and Language Choices. Ideas decide whether a reader new to the topic can understand it. Structure decides whether the three required areas land clearly. Language decides whether technical terms feel accessible.

Ideas & Content

Informative writing shines when complex ideas become simple. A writer explaining nuclear energy needs to understand fission and electricity production well enough to break it down. Concrete examples help. The best informative writers explain why something matters. Balance is key: a fair piece presents both reasons people support nuclear energy and legitimate concerns about it.

What markers scan for

  • Key concepts are explained clearly; technical terms are defined or contextualised.
  • Ideas are broken into logical steps; the reader can follow from one to the next.
  • Arguments for and against are presented fairly without obvious bias.

Score Bands

  • Basic

    Explanations are present but may be vague or incomplete. Technical terms may be used without definition. Arguments may be unevenly presented.

  • Strong

    Key concepts are explained clearly with some examples. Both arguments are presented fairly. The reader understands the basics and the debate.

  • Excellent

    Explanations are clear, detailed and accessible. Technical terms are well-integrated. Both arguments carry equal weight and nuance. The reader gains genuine understanding.

Structure & Cohesion

Structure shapes how information lands. A well-organised piece follows a plan: what is it, how does it work, what are the arguments. Each paragraph has a clear topic sentence. Transitions like 'Another reason' or 'In contrast' guide the reader. Strong structure makes complex information feel manageable.

What markers scan for

  • Each paragraph has a clear focus and topic sentence; the three required areas are distinct.
  • Ideas within paragraphs flow logically; transitions guide the reader.
  • Conclusion reinforces or reflects on the main ideas presented.

Score Bands

  • Basic

    Paragraphs lack clear focus. The three required areas may not be clearly separated. Flow is choppy; transitions are missing or unclear.

  • Strong

    Each paragraph has a clear purpose. The three areas are organised and mostly distinct. Transitions are generally clear. Structure is easy to follow.

  • Excellent

    Structure is tight and purposeful. Each paragraph has a strong topic sentence. Ideas flow smoothly within and between paragraphs. The conclusion is strong.

Language Choices

Language in informative writing must be precise and accessible. Technical terms like 'nuclear fission' are necessary but need explanation. Concrete language ('uranium atoms split, releasing heat') beats abstract phrasing. Active voice often engages more than passive. Varied sentence length keeps the reader engaged without sacrificing clarity.

What markers scan for

  • Technical terms are used accurately and defined or contextualised for the reader.
  • Language is clear and concrete; abstract language is minimal.
  • Word choice and sentence structure support understanding; the reader is not overwhelmed.

Score Bands

  • Basic

    Language is sometimes vague or unclear. Technical terms may be used without definition. Sentences may be unclear or overly complex.

  • Strong

    Language is generally clear and precise. Technical terms are mostly defined. Sentence structure supports understanding. The reader can follow with minimal effort.

  • Excellent

    Language is clear, precise and engaging. Technical terms are well-integrated and explained. Sentence variety supports comprehension. The reader stays engaged.

Now read · Student sample

What Nuclear Energy Is

Year 9 sample · \~300 words

Student sample for assessment

Written by a Year 9 student in Blackburn, Victoria, Australia.

Nuclear energy is electricity made from the heat created when uranium atoms are split. This process, called nuclear fission, happens inside nuclear reactors at power stations. When a uranium atom splits, it releases a massive amount of heat. This heat boils water to create steam, which turns turbines that generate electricity. Unlike burning fossil fuels such as coal and oil, nuclear energy produces electricity without releasing carbon dioxide into the atmosphere, making it attractive to countries concerned about climate change. The process of producing nuclear energy begins when uranium atoms are bombarded with neutrons, causing them to split. This splitting releases energy and more neutrons, creating a chain reaction that continues to split more atoms and release more heat. The heat is carefully controlled inside the reactor core, where it warms water into steam. The steam drives turbines connected to generators, much like a traditional power station, except the heat source is atomic rather than fossil fuel. The reactor is surrounded by multiple layers of protection to prevent radiation from escaping. Nuclear power stations produce very little waste compared to coal plants, but the waste that is produced remains radioactive for thousands of years, making its safe storage a major challenge. Nuclear energy has significant advantages and disadvantages. Supporters argue that nuclear power is essential for reducing global carbon emissions because it produces baseload electricity without CO2. Modern reactors use passive safety systems that work without electricity. However, critics point to the dangers demonstrated by nuclear accidents such as Chernobyl in 1986 and Fukushima in 2011, and they worry about high construction costs and the unresolved problem of long-term radioactive waste storage. Most countries are split on whether nuclear energy's benefits outweigh its risks. Australia, for instance, has uranium deposits but no nuclear power plants, and the government remains divided on whether to build them.