OCR GCSE Chemistry B · J258
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Planning experimentsA plan may be designed to make observations, produce or characterise a substance, test a hypothesis, collect and check data, or explore a phenomenon. These purposes often overlap. For example, producing a salt may be followed by observations and measurements that help to characterise the product.