Скачать или смотреть GCSE Chemistry Practical: Rates of Reaction – Colour & Turbidity Changes | Philip Harris

⏱️ Observe how the rate of reaction can be tracked through changes in colour or turbidity.
In this GCSE Chemistry required practical, we demonstrate how to investigate the rate of reaction by monitoring how quickly a cross disappears beneath a cloudy solution — a visual and engaging way to study reaction kinetics.

🧪 In this video, you’ll learn how to:
✔️ Set up a practical using sodium thiosulfate and hydrochloric acid
✔️ Identify a visual endpoint (disappearing cross method)
✔️ Record how concentration affects rate of reaction
✔️ Understand variables and ensure valid results

✅ Fully supports AQA, Edexcel, and OCR GCSE Chemistry specifications.

🎓 Perfect for teachers leading practicals, lab techs preparing equipment, and students revising for exams.

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