Investigation: Designing a fair test
A teaching tool for teachers to illustrate how to carry out fair tests.Key Concepts addressed:
- 2-1 Comparisons are needed to identify treatment effects
- 2-2 Comparison groups should be similar
- 2-4 Comparison groups should be treated equally
In this investigation, students learn about carrying out a fair test, by running a blind trial of organic and non-organic herbs to see if they can identify any differences in taste. The investigation is put into a STEM careers context through an initial case study of James Seymour, a scientist who works as a Product Manager for a company growing herbs for major shops and supermarkets. This resource includes teachers’ notes, case study, students&’ worksheet & technical notes for the practical.
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