Year 9 Science · AC9S9I08

Scientific communication for purpose and audience

Communicate the same science differently when purpose and audience change—without changing the evidence. Choose structure, terminology, visuals and digital tools that…

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Key conceptTeach from the board

Purpose could be to explain a mechanism, report an investigation, argue from evidence, advise a decision maker or inform a public audience. Audience affects assumed background knowledge, vocabulary and amount of detail. It does not justify changing data or exaggerating certainty.

Scientific texts use features purposefully: headings create structure, tables preserve exact values, graphs show patterns, diagrams explain relationships, captions state significance, citations establish provenance. Digital tools can support accessibility and interactivity, but decorative media that do not add scientific meaning can distract.

Worked examplesWe do

Worked examples

AC9S9I08 - Scientific communication for purpose and audience
Example 1

Rewrite one technical sentence for a general audience while preserving meaning.

Example 2

Select a graph or table for a stated communication purpose.

Example 3

Improve a graph caption so it states the scientific message.

Example 4

Identify an overclaim introduced by an exaggerated headline.

Curriculum examplesCopied content

Australian Curriculum v9.0 — AC9S9I08: create texts for identified purposes/audiences using appropriate content, language, features and digital tools.

Victoria Levels 9–10 — VC2S10I08:Exact.

NSW Stage 5 — SC5-WS-08:Exact communicates scientific arguments with evidence using scientific language in a range of forms.

LessonAC v9VictoriaNSW
Purpose/audience communicationDirectDirectDirect WS-08
Digital/visual featuresDirectDirectRange-of-forms support
Questions and answersWith answers
  1. What changes with audience? Vocabulary, assumed background, structure, detail and format.
  2. What must not change? The underlying evidence, data integrity and justified level of certainty.
  3. When should I use a visual? When it communicates a relationship, pattern, structure or comparison more effectively than prose alone.
  4. Why cite sources? To show provenance and let readers check evidence.
Practice and reviewReady for practice
  • Good science writing must sound complicated. Precision matters more than unnecessary jargon.
  • Simplifying means removing uncertainty. Uncertainty can be explained clearly without distortion.
  • More graphs/images always improve communication. Each feature should serve a scientific purpose.
  • Audience changes the result. Audience changes presentation, not evidence.
Curriculum alignmentStart here
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