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Science · 6th Year

Active learning ideas

Pollution and Human Impact

This topic examines the various ways human activity alters the natural environment, focusing on air, water, and soil pollution. Students investigate the sources of pollutants, from industrial runoff and agricultural slurry to domestic plastic waste and carbon emissions. The NCCA curriculum encourages students to look at both the local impact on Irish waterways and the global impact of the greenhouse effect and climate change.

NCCA Curriculum SpecificationsLeaving Certificate Applied Science, Module 2: Science and the Environment, Unit 3: PollutionLeaving Certificate Applied Science, Module 2: Science and the Environment, Unit 4: Human Impact on the Environment
30–50 minPairs → Whole Class3 activities

Activity 01

Simulation Game50 min · Small Groups

Simulation Game: The Water Filter Challenge

Students are given 'polluted' water (containing sand, oil, and litter) and must use various materials to design a filtration system. They test the clarity of the water before and after to see the difficulty of cleaning ecosystems.

What are the main sources of pollution in our community?
ApplyAnalyzeEvaluateCreateSocial AwarenessDecision-Making
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Activity 02

Formal Debate45 min · Whole Class

Formal Debate: The Carbon Tax

Divide the class into groups representing farmers, commuters, and environmentalists. They debate the pros and cons of a carbon tax in Ireland, using scientific data to support their positions.

How does pollution affect local ecosystems and human health?
AnalyzeEvaluateCreateSelf-ManagementDecision-Making
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Activity 03

Inquiry Circle30 min · Small Groups

Inquiry Circle: Local Air Quality

Students place 'sticky traps' (index cards with petroleum jelly) in different locations around the school to collect particulate matter. After a week, they compare the traps to identify pollution hotspots.

What steps can be taken to reduce negative human impacts on the environment?
AnalyzeEvaluateCreateSelf-ManagementSelf-Awareness
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Templates

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A few notes on teaching this unit


Watch Out for These Misconceptions

  • The greenhouse effect is always a bad thing.

    Explain that the natural greenhouse effect is necessary for life on Earth to stay warm. The problem is the 'enhanced' greenhouse effect caused by human pollution. A simple diagram-based discussion can clarify this distinction.

  • Pollution only affects the area where it is produced.

    Use a map-based activity to show how river currents and wind carry pollutants far from their source. This helps students understand the global nature of environmental issues.


Methods used in this brief