Combined Science study guides

An overview of the cell level systems and scaling up content (topics B1 and B2) in OCR Gateway GCSE Combined Science A (J250), mapping cell structure, enzymes, respiration, photosynthesis, mitosis, transport across membranes and transport systems, and how they are examined on Biology Paper 1.

An overview of the organism level systems, community level systems, genes and inheritance, and global challenges content (topics B3 to B6) in OCR Gateway GCSE Combined Science A (J250), mapping the nervous and hormonal systems, ecosystems and cycles, genetics, evolution and disease, and how they are examined.

An overview of the particles and elements, compounds and mixtures content (topics C1 and C2) in OCR Gateway GCSE Combined Science A (J250), mapping the particle model, atomic structure, the periodic table, bonding, the properties of materials and separation techniques, and how they are examined on Chemistry Paper 3.

An overview of the chemical reactions, predicting and identifying reactions, monitoring and controlling reactions, and global challenges content (topics C3 to C6) in OCR Gateway GCSE Combined Science A (J250), mapping reaction types, energetics, electrolysis, the reactivity series, chemical tests, rates, equilibrium and the Haber process.

An overview of the electricity and magnetism and waves and radioactivity content (topics P3 and P4) in OCR Gateway GCSE Combined Science A (J250), mapping circuits, electromagnetism, wave properties, the electromagnetic spectrum, radioactivity and half-life, and how they are examined.

An overview of the matter, forces and energy content (topics P1, P2 and P5) in OCR Gateway GCSE Combined Science A (J250), mapping density and the particle model, motion and Newton's laws, momentum, energy stores, power and efficiency, and the national grid, and how they are examined.