Science · 3rd Class · Environmental Awareness and Care · Summer Term

Keeping Our Water and Air Clean

Investigate why clean water and fresh air are so important for all living things and explore some of the simple things we can do to prevent pollution.

TL;DR:Let's become environmental detectives and investigate the air we breathe and the water we drink. We'll uncover why they're so important and what we can do to protect them right here in our own community.

• NCCA Curriculum Specifications
• NCCA: Primary Science Curriculum - Environmental Awareness and Care

About This Topic

This topic, 'Keeping Our Water and Air Clean', aligns directly with the 'Environmental Awareness and Care' strand of the Irish Primary School Science Curriculum. For third class pupils, it serves as a foundational exploration into human impact on the local environment. The focus should be on tangible, observable examples within the children's own community, moving from the abstract concept of 'pollution' to concrete instances like litter in a local park, fumes from traffic outside the school, or the importance of not wasting water from the tap.

The curriculum encourages the development of skills such as observing, questioning, and investigating. This topic provides rich opportunities for hands-on activities, such as simple water filtering experiments or surveys of local biodiversity. The overarching goal is to foster a sense of personal and collective responsibility, empowering pupils to understand that their small, positive actions can contribute to a healthier environment for everyone. It's about building environmental literacy and a caring attitude from a young age, linking scientific understanding with active citizenship.

Key Questions

1. Identify three sources of water pollution in our community.
2. Explain why plants and animals need clean air and water to survive.
3. Analyse how walking or cycling to school instead of driving helps keep the air cleaner.

Learning Objectives

• Identify at least three local sources of air and water pollution.
• Explain in their own words why clean air and water are essential for plants, animals, and humans.
• Describe two simple actions they can take to help reduce pollution.
• Record observations from a simple environmental investigation or survey.
• Compare the environmental impact of different modes of transport to school.

Key Vocabulary

Pollution	When harmful substances are added to the environment, making it dirty and unsafe for living things.
Environment	The natural world around us, including the air, water, land, plants, and animals.
Conservation	The protection and careful management of our environment and natural resources.
Recycle	To convert waste materials into new materials and objects, like turning old plastic bottles into new ones.
Pollutant	A substance that makes the air, water, or soil dirty and harmful.

Watch Out for These Misconceptions

Common Misconception

Pollution only comes from big factories and power plants.

What to Teach Instead

Pollution is also caused by everyday things we all do, like dropping litter, using cars for short trips, and wasting electricity. Many small sources of pollution add up to cause a big problem.

Common Misconception

Once rubbish is in the bin, it's gone forever.

What to Teach Instead

Rubbish from our bins goes to a landfill, which is a huge pile of waste, or sometimes to an incinerator to be burned. It doesn't just disappear and can still harm the environment if not managed properly.

Common Misconception

You can always see and smell pollution.

What to Teach Instead

While some pollution is visible, like smoke or litter, many harmful pollutants in the air and water are invisible and have no smell. These can still be very dangerous for people, plants, and animals.

Active Learning Ideas

Think-Pair-Share

Water Pollution Detectives

Provide small groups with jars of 'polluted' water containing soil, small bits of litter, and a drop of cooking oil. Pupils observe the water, record what they see, and then attempt to clean it using simple filters like cotton wool, sand, and coffee filters.

45 min·Small Groups

Think-Pair-Share

Clean Air, Dirty Air Collage

Pupils work in pairs to create a large A3 poster divided in two. On one side, they draw or stick pictures of things that help keep air clean (trees, bikes, wind), and on the other, things that cause air pollution (cars, factories, burning rubbish).

40 min·Pairs

Think-Pair-Share

Our School Travel Survey

As a whole class, conduct a survey on how everyone travelled to school that day (walk, cycle, car, bus). Create a simple bar chart on the board to visualise the results and discuss which methods are best for the air.

30 min·Whole Class

Real-World Connections

• Participating in the Green-Schools programme, focusing on themes like litter, waste, or travel.
• Discussing the local Tidy Towns committee and the work they do to keep the community clean.
• Understanding why some Irish beaches get a 'Blue Flag' award for being clean and safe.
• Learning about 'Boil Water Notices' issued by Uisce Éireann (Irish Water) and what they mean for water safety.
• Observing recycling bins at home and in school and learning what goes into the green, brown, and black bins.

Assessment Ideas

Exit Ticket

Use an 'exit ticket' where pupils write down one thing they learned about pollution and one question they still have.

Peer Assessment

Pupils design a poster for the school notice board encouraging others to walk or cycle to school, explaining the benefits for air quality.

Quick Check

Provide pupils with a 'traffic light' card (red, orange, green) to indicate their confidence in explaining what pollution is.

Frequently Asked Questions

If the rain washes the dirt away, isn't that cleaning the streets?

Rain does wash dirt off the streets, but it carries the pollution (like oil from cars and rubbish) into drains. These drains often lead directly to our rivers and seas, moving the pollution from the land into the water.

Why is it bad to leave the tap running while I brush my teeth?

Cleaning water so it's safe to drink uses a lot of energy and resources. When we leave the tap running, we waste lots of this clean water, which is not good for the environment and means there is less available for everyone else.

How do trees help to keep the air clean?

Trees are brilliant for the air. They breathe in a gas called carbon dioxide, which is a type of air pollution, and they breathe out the oxygen that we need to live. Their leaves also help to trap dust and other pollutants from the air.