Part of the Edexcel GCSE Combined Science curriculum.
Edexcel GCSE Combined Science Topic 7 Rates of Reaction and Energy Changes is a step-by-step online learn guide for GCSE students in Years 10 and 11, mapped to the Edexcel specification (Pearson Edexcel GCSE (9–1) Combined Science (1SC0) – Topic 7 Rates of reaction and energy changes). It covers measuring rates of reaction, core practical: investigating rates, collision theory and rate factors, catalysts and enzymes, exothermic and endothermic reactions, reaction profiles and activation energy and bond energies, then brings it all together with mixed retrieval and exam practice.
There are 23 short steps of about 15 minutes (roughly 6 hours of learning), each made of bite-size explanations with key words, tables and examples, and every bite-size is followed by an activity you check straight away. Key terms include Rate of reaction, Mean rate, Core practical, Independent variable, Collision theory, Activation energy, Catalyst, Alternative pathway, Exothermic, Endothermic, Reaction profile and Overall energy change.
