Lesson 6: Why are some materials used and not others?
Lesson 6: Why are Some Materials Used and Not Others?
What makes a material suitable for a specific job? In this lesson, pupils carry out a comparative investigation to determine which materials are most suitable for making a lunchbox. They explore the importance of water resistance, strength and insulation, and learn how to plan and conduct a fair test to produce reliable results.
Part of our Scintillating Science programme, this lesson brings science into real-life contexts. Children test a range of materials using hands-on activities, then draw conclusions using scientific vocabulary. Pupils are supported to think critically about how evidence supports decision-making in science and design.
In this lesson, pupils will:
- Plan and carry out a fair test to compare materials
- Test materials for water resistance, strength, and insulation
- Record results and draw conclusions based on evidence
- Suggest suitable uses for materials using scientific reasoning
Included in this lesson:
- Interactive teaching slides with clear guidance
- A detailed lesson plan with vocabulary and misconceptions
- Differentiated investigation worksheets
- Continuous provision ideas including a recycled lunchbox challenge
A meaningful end-of-unit lesson that links scientific testing with everyday applications, encouraging thoughtful discussion and evidence-based thinking.
This resource is part of the Mrs Mactivity Science Scheme of Work →
