What ends up at the sewage treatment plant? (Years 3-4)

Aerial view of sewage treatment lagoons at the Western Treatment Plant
Western Treatment Plant lagoons

What does end up at the sewage treatment plant? Your students will discover the answers through the following three activities.

Download the lesson plan

This lesson plan contains modules explicitly linked to the Victorian Curriculum. It has also been adapted into an excursion tour kit that can be used in conjunction with guided tours of the Western Treatment Plant, run by Melbourne Water's Education team.

Download the full plan or individual activities below.


Activity 1: Down the drain in my house

Students explore different household materials that may end up in the sewage at the sewage treatment plant and they conduct a home audit of sewage that enters the sewerage from their home.

Duration: Two double sessions

Activity 2: Sewage, sewerage and the sewage treatment plant

Students create a social message on ‘What should or should not be put into the sewerage system’.

Duration: One double session

Activity 3: The sewage treatment plant and my family

Students develop a visual flow chart of the sewerage system from home to the sewage treatment plant.

Duration: One double session

Victorian curriculum links

  • VCSSU056: Science knowledge helps people to understand the effects of their actions
    Science > Science understanding > Science as a human endeavour
  • VCSSU044: Objects are made of materials that have observable properties
    Science > Science understanding > Chemical sciences
  • VCSSU047: Earth's resources are used in a variety of ways
    Science > Science understanding > Earth and space sciences


What is sewerage?

Melbourne Main Sewage Replacement Project (MMSR), Flinders Wharf, Wurundjerri Way bypass

Greater Melbourne's sewerage has provided Melburnians with world-class sanitation for over 100 years, protecting public health and the environment. Find out more about it.



What is sewage?

WTP wetlands

Discover more about sewage, then read the benefits of 'poo power' harnessed by the treatment process. Watch our videos on the treatment process here. 



Western Treatment Plant virtual tour

Western Treatment Plant

Learn more about this world-class facility with our new virtual tour, with stunning 360-degree views you can access anytime, anywhere. 

Our new virtual tour



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