Combined Science

Combined Science — IGCSE

British Curriculum · Cambridge Assessment International Education · Years 10-11 · Ages 14-16

Cambridge IGCSE Co-ordinated Sciences (0654/0973) is a double award covering biology, chemistry and physics in one course and earning two grades. It is the route most international schools use for students who want a full science grounding without taking three separate IGCSEs.

Content mirrors the separate sciences at reduced depth across all three disciplines, and the qualification is accepted for progression to A Level in any of them, which makes it a genuinely flexible choice rather than a fallback.

The main difficulty is breadth rather than depth: three subjects on a shared timetable means pace is tight, and targeted support on the weakest of the three disciplines is usually the most efficient intervention.

Key topics covered

• Cells & Organisms — Cell structure, transport, enzymes, nutrition, respiration and coordination.
• Reproduction, Inheritance & Ecology — Reproduction, DNA, genetic crosses, ecosystems and human impact.
• Atoms, Bonding & Stoichiometry — Atomic structure, the periodic table, bonding and mole calculations.
• Chemical Reactions — Acids and bases, electrolysis, rates, energetics and organic chemistry.
• Forces, Motion & Energy — Newton's laws, momentum, work, power, efficiency and thermal physics.
• Waves, Electricity & Magnetism — Wave properties, the EM spectrum, circuits, motors and transformers.
• Practical Skills — Apparatus, variables, measurement, graph work and evaluation.