B11 Cells
B12 Organisation
B13 Reproduction
B21 Health
B22 Ecosystems
B23 Adaptation and inheritance
C11 Particles
C12 Elements atoms and compounds
C13 Reactions
C14 Acids and alkalis
C21 Periodic table
C22 Separation techniques
C23 Metals and acids
C24 The Earth
P11 Forces
P12 Sound
P13 Light
P14 Space