Part of the Edexcel GCSE Combined Science curriculum.
Edexcel GCSE Combined Science Topic 1 Key Concepts in Chemistry 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 1 Key concepts in chemistry). It covers formulae, equations and hazards, atomic structure and isotopes, the periodic table, ionic bonding, covalent bonding, types of substance, calculations with masses and moles and limiting reactants, then brings it all together with mixed retrieval and exam practice.
There are 26 short steps of about 15 minutes (roughly 6.5 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 Formula, Balanced equation, Nucleus, Atomic number, Group, Period, Ion, Ionic bond, Covalent bond, Molecule, Simple molecular and Giant covalent.
