Investigation: Designing a fair test

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• Format Lessons
• Language/s English
• Target Audience Schools
• EBM Stage 0 - Why EBM?, 1 - Asking focused questions
• Duration >15 mins
• Difficulty Introductory

Key Concepts addressed

• 2-1a Comparison groups should be similar
• 2-1c Comparison groups should be treated equally
• 1-2e Comparisons are needed to identify treatment effects

Details

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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