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Scientific Investigations & Variables

Scientific Investigations & Variables

Practical chemistry is not just about doing experiments, but designing them to be safe, reliable, and valid. Every time you investigate a chemical reaction, you must identify and control your variables.

Practical skills Lesson

  1. GCSE
  2. /Chemistry
  3. /Practical skills

Step-by-step lessons on OCR GCSE Chemistry Practical skills. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

Lessons