Activity Introduction

Quick summary: We all go to the toilet, it’s important for our body’s natural function, but have you ever wondered why our wee changes colour? In this lesson students explore the colour of wee as a sign of a ‘healthy me’. The colour of wee tells a hydration story, about how your body is filtering fluids. The students discover a simple way to show if your body has enough water. Students create a helpful colour wheel to use as an indicator of the water in their body. They explore how sugar levels change in the blood and how this is all related to the water we drink.

Learning intentions:

  • Students understand how kidneys help the body function
  • Students understand how water helps hydrate their bodies
  • Students understand why sugar affects their bodies.

21st-century skills: 

  CommunicatingProblem FindingProblem Solving             

Australian Curriculum Mapping

Content descriptions: 

Years 3 & 4 HPE:

  • Identify and practise strategies to promote health, safety and wellbeing (ACPPS036)
  • Discuss and interpret health information and messages in the media and internet (ACPPS039)

Syllabus outcomes: PHS2.12, SLS2.13

General capabilities: Critical and Creative Thinking  

Relevant parts of Year 3 & 4 HPE achievement standards: 

 Students interpret health messages and discuss the influences on healthy and safe choices. They understand the benefits of being healthy and physically active. They describe the connections they have to their community and identify local resources to support their health, wellbeing, safety and physical activity.

Students apply strategies for working cooperatively and apply rules fairly. They use decision-making and problem-solving skills to select and demonstrate strategies that help them stay safe, healthy and active.

Topic: Health and Wellbeing. 

This lesson is part of the wider unit of work Sugar By Half.

Time required: 60 mins.

Level of teacher scaffolding: Medium – facilitate class discussions and lead student activities.

Resources required:

  • A device capable of presenting images to the class, such as an iPad, computer, projector, interactive whiteboard, etc
  • Coloured pencils in shades of yellow and brown, split pins, paper, scissors
  • Hydration Chart 
  • Split pins for paper enough for each student
  • Scissors for each student to use
  • Student Worksheets – one copy per student
  • Template colour wheel for each student.

Keywords: human body, kidneys, hydration, nutrients, sugar, health, and wellbeing.

Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.


Teacher Worksheet

Teacher Preparation

Learning intentions: Students will...

  • ...understand how kidneys help the body function
  • ...understand how water helps hydrate our bodies
  • ...understand why sugar affects our bodies.

Success criteria: Students can…

  • ... describe how water helps the kidneys work to filter blood
  • ... explain how water keeps our bodies hydrated
  • ...discuss how sugar can dehydrate the body.

Teacher content information:
Young people’s exposure and experiences with health and nutrition have changed due to ongoing research about the long-term effects of a high sugar diet. It is important to remind students, parents, and teachers that the literature and data available about health and nutrition have improved significantly in recent times. These lessons were produced in response to the ongoing concern for high sugar intake and aim to help educate students in making better choices in the future and living healthier lives.

SugarByHalf ( promotes actio

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Student Worksheet

Thought-starter: Why is it important to observe and know about the health of our body?

1. Colour Wheel

Follow the steps to create a colour wheel that depicts the difference between dehydrated and hydrated wee: 

  • Show students the Hydration Chart and ask your class to use the appropriate colours to show the wee getting progressively dehydrated due to lack of nutrient-rich foods (such as fresh fruit and vegetables) and hydration from water (You may like to use a light yellow and build the dehydration using darker yellows and eventually brown)
  • Cut around your colour wheel and either hang the wheel up in your room or paste it into your books. 

colour wheel

2. Observe and analyse the various ways to investigate good health

Whilst observing the various colours in the charts below, think about the type of diet that might be low in hydration and nutrients that could potentially result in dark wee, compared to a diet rich in wholefoods and water (as a means of hydration).

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