Written examination: 1 hour and 10 minutes, Content covered: Topic 1 Key concepts in biology, Topic 2 Cells and control, Topic 3 Genetics, Topic 4 Natural selection and genetic modification, Topic 5 Health, disease and the development of medicines, Content summary: Topic 1 Key concepts in biology, Topic 6 Plant structures and their functions, Topic 7 Animal coordination, control and homeostasis, Topic 8 Exchange and transport in animals, Topic 9 Ecosystems and material cycles, Content: Topic 1 Key concepts in chemistry, Topic 2 States of matter and mixtures, Topic 3 Chemical changes, Topic 4 Extracting metals and equilibria, Content summary: Topic 1 Key concepts in chemistry, Topic 6 Groups in the periodic table, Topic 7 Rates of reaction and energy changes, Topic 8 Fuels and Earth science, Content covered: Topic 1 Key concepts of physics, Topic 2 Motion and forces, Topic 3 Conservation of energy, Topic 4 Waves, Topic 5 Light and the electromagnetic spectrum, Topic 6 Radioactivity. physics and combined science