Part of the AQA GCSE Combined Science curriculum.
AQA GCSE Combined Science 5.5 Energy Changes is a step-by-step online learn guide for GCSE students in Years 10 and 11, mapped to the AQA specification (AQA GCSE Combined Science: Trilogy (8464) – 5.5 Energy changes). It covers energy transfer and exothermic reactions, endothermic reactions and their uses, temperature change required practical, reaction profiles and activation energy, bond breaking and making – Higher tier only and bond energy calculations – Higher tier only, then brings it all together with mixed retrieval and exam practice.
There are 20 short steps of about 15 minutes (roughly 5 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 System, Surroundings, Endothermic reaction, Thermal decomposition, Required practical 10, Polystyrene cup, Activation energy, Reaction profile, Bond breaking, Bond making, Overall energy change and Negative energy change.
