AC9S5H02 • Year 5 Science

AC9S5H02: Investigate how scientific knowledge is used by individuals and communities to identify problems, consider responses and make decisions

investigate how scientific knowledge is used by individuals and communities to identify problems, consider responses and make decisions

What students learn in AC9S5H02

Students connect scientific explanations to possible solutions, compare benefits, risks and uncertainties and recognise that decisions also involve values, cost, equity, ethics and environmental consequences.

Science informs what may happen and how a solution works; decisions also require transparent criteria and consideration of who or what is affected.

Scientific evidence does not automatically select one option. State uncertainties and value judgements rather than hiding them as scientific facts.

A solution can shift a problem elsewhere or create long-term effects. Monitoring and revision are part of responsible decision-making.

Learning routine: Observe → Model → Investigate → Analyse → Explain → Evaluate

Success looks like

  • Identify system components
  • Explain relationships with a model
  • Use evidence from a fair method
  • Apply to a new context
  • Evaluate limits and further questions
Key vocabulary
ethical implication
effect involving fairness, rights, responsibilities or harm
environmental implication
effect on organisms, resources or ecosystems
stakeholder
person, group or system affected by a decision
Concept models and worked thinking

Use an evidence-and-values decision framework

QuestionExample considerationneed/problemreduce soil erosionscience evidencevegetation slows runoff and stabilises soiloptionsplanting, barriers, drainage changesbenefits/riskshabitat, cost, maintenance, downstream effectsstakeholderslandholders, community, ecosystemsdecisioncriteria-weighted recommendation

Scientific evidence does not automatically select one option. State uncertainties and value judgements rather than hiding them as scientific facts.

  1. Read every label and identify the quantities, parts or evidence.
  2. Explain the relationship shown—not just the final answer.
  3. Check the conclusion against the original question and units.

Identify unintended consequences

implement solution→monitor intended outcome→observe side effects→identify affected groups/systems→adapt design or policy→continue evidence review

A solution can shift a problem elsewhere or create long-term effects. Monitoring and revision are part of responsible decision-making.

Now transfer the same relationship to a new situation and justify the result with precise vocabulary.

Curriculum coverage and elaborations

Content description: investigate how scientific knowledge is used by individuals and communities to identify problems, consider responses and make decisions.

  • E1: considering how decisions are made to farm particular crops or animals depending on local habitats, such as considering their ability to withstand drought or cold weather
  • E2: examining how communities use knowledge of erosion processes to design landscape features that reduce erosion in fragile environments
  • E3: examining how knowledge of erosion is used by park rangers to design rules such as keeping to the path and not climbing sandstone, and built features such as channel drains on paths, railings and barriers to protect the park environment and First Nations Australians’ heritage sites
  • E4: researching the impacts of light pollution and exploring how communities have used scientific knowledge to reduce light pollution, such as through the use of covered bulbs facing downwards in streetlights, automated systems to turn off streetlights and motion sensors on outdoor lights at home and in public places
  • E5: investigating how and why people used properties of light to design signal lamps to communicate via Morse code and where they continue to be used
Guided learning activities

1. Model and annotate

Build or examine the visual model for science, decisions and unintended consequences, label the parts and explain the relationship.

QuestionExample considerationneed/problemreduce soil erosionscience evidencevegetation slows runoff and stabilises soiloptionsplanting, barriers, drainage changesbenefits/riskshabitat, cost, maintenance, downstream effectsstakeholderslandholders, community, ecosystemsdecisioncriteria-weighted recommendation

2. Investigate or analyse evidence

Use a controlled comparison, data set or source evidence to test the application and record a cautious conclusion.

implement solution→monitor intended outcome→observe side effects→identify affected groups/systems→adapt design or policy→continue evidence review

3. Transfer and evaluate

Apply the explanation to a new case, identify limitations and propose a next question or design improvement.

Define stakeholder.Separate evidence/value.Name an unintended effect.Compare options by criteria.
Revision Notes

Core idea: Science informs what may happen and how a solution works; decisions also require transparent criteria and consideration of who or what is affected.

Remember

  • Identify system components
  • Explain relationships with a model
  • Use evidence from a fair method
  • Apply to a new context
  • Evaluate limits and further questions

Important questions

  • Define stakeholder. Explain using the model or evidence above.
  • Separate evidence/value. Explain using the model or evidence above.
  • Name an unintended effect. Explain using the model or evidence above.
  • Compare options by criteria. Explain using the model or evidence above.
  • State uncertainty. Explain using the model or evidence above.
How to use this unit

Learn from the Topic Guide and fixed Teacher Slides, complete the Practice Sheet, use Practice for supported feedback, then take the Test when ready.

AC9S5H02 Teacher Slides

Project the fixed branded slide deck one slide at a time.

Open Classroom View
Common misconceptions
  • Science alone determines values — Evidence informs but does not replace ethical choices.
  • Good intention guarantees good outcome — Monitor unintended effects.
  • Risk means solution must be rejected — Compare likelihood, consequence and mitigation.
  • Stakeholders limited to decision-makers — Include affected people, future users and environments.
🎥 Optional Video Lesson

The SkillrHub lesson remains the primary learning resource. This optional video reinforces the explanation; you can complete the lesson and practice without watching.

Back to the lesson

Before you watch:

  • Pause after each worked example.
  • Try the examples yourself.
  • Return to the SkillrHub lesson before continuing.
Recommended: How Plastic Hurts the World

SciShow Kids — Use knowledge about plastic waste to explain an environmental problem and consider a response.

As you watch: How does understanding where plastic travels help a community choose what to do?

Load video player Loads YouTube in this lesson. See the video notice below.

Try it: Identify one plastic-waste problem at school and explain a possible response using scientific reasons.

Video unavailable, inaccurate or unsuitable for this year? Report a video problem to SkillrHub by email. You can continue with the written lesson and practice resources.

About these videos

Videos are curated from trusted independent educational creators and played through YouTube. Rights remain with their respective owners. Inclusion does not imply that a creator or YouTube endorses SkillrHub.

YouTube’s terms and privacy policy apply to its player. Advertising, recommendations and external links may appear, and videos may change or become unavailable. SkillrHub’s written lessons and practice resources remain available separately.

To report a content, suitability or rights concern, email skillrhublearning@gmail.com with the lesson code and video link. Please do not include personal student information.

Curriculum equivalents: Victoria, NSW and international

Curriculum equivalents for Investigate how scientific knowledge is used by individuals and communities...

Mapped skill: investigate how scientific knowledge is used by individuals and communities to identify problems, consider responses and make decisions

These references identify matching or closely related learning. Curriculum sequence, terminology and depth vary, so teachers should use the mapped skill and lesson difficulty to confirm suitability.

RegionCurriculum frameworkClosest level or code
AustraliaAustralian Curriculum v9.0AC9S5H02 · Year 5
VictoriaVictorian Curriculum F–10 Version 2.0 — ScienceVC2S6H02 · Levels 5–6
New South WalesNSW Science and Technology K–6 Syllabus (2024)ST3-SCI-01 · Stage 3
United States (USA)Next Generation Science Standards (NGSS)Grade 5
Canada (Ontario)Ontario Curriculum — ScienceGrade 5
United Kingdom (England)National Curriculum in England — ScienceYear 6, Key Stage 2
IndiaNCERT / CBSE — ScienceClass 5

Australian Curriculum v9.0 is the canonical source for this SkillrHub lesson. Victoria and NSW entries name the closest published state codes or outcomes; international entries are planning references rather than claims of identical curricula.

Help improve SkillrHub

Questions or feedback?

Ask about this lesson, suggest an improvement or report an error. Facebook opens only when you choose an option below.

Topic reference: AC9S5H02 — AC9S5H02: Investigate how scientific knowledge is used by individuals and communities to identify problems, consider responses and make decisions

💬 Ask a question 💡 Suggest an improvement ⚠️ Report an error

Privacy: Please don’t share personal student or school information. Younger students should ask a parent, guardian or teacher to post on their behalf.

Official curriculum reference
Related Year 5 Science topics