Year 9 · Cambridge IGCSE topic coverage · 100 marks
This paper sweeps the whole IGCSE syllabus. Parts 1–7 are multiple choice with four options — nothing to type, so no mark is ever lost to spelling, units or punctuation. Every wrong option is the answer produced by a specific common mistake, so guessing rarely pays.
Each part is checked instantly and every question carries a full worked explanation.
Part 8 has two written questions marked by the AI examiner, which grades your reasoning and never penalises spelling.
You may use a calculator; take π = 3.142 and g = 10 N/kg.
Prepared for Kai Lun
PART 1Maths — Number & Algebra
[12 marks]
Standard form, percentages, ratio, indices, surds, quadratics, simultaneous equations, rearranging formulae, inequalities and sequences.
PART 2Maths — Graphs & Coordinate Geometry
[10 marks]
Gradients, straight lines, midpoints, lengths, parallel and perpendicular lines, curves and sequences.
PART 3Maths — Geometry, Mensuration & Trigonometry
[10 marks]
Polygons, circle theorems, sectors, cones and spheres, Pythagoras, trigonometry and similar solids. Take π = 3.142.
PART 4Maths — Transformations, Vectors, Probability & Statistics
[10 marks]
Reflections, rotations, translations, enlargements, vectors, probability and averages.
PART 5Science — Biology
[14 marks]
Characteristics of life, cells, diffusion and osmosis, enzymes, food tests, photosynthesis, digestion, transport, gas exchange, coordination, inheritance and natural selection.
PART 6Science — Chemistry
[14 marks]
Kinetic theory, atomic structure, bonding, moles and formula mass, electrolysis, energetics, rates, equilibrium, acids, the periodic table and organic chemistry.
PART 7Science — Physics
[14 marks]
Motion and graphs, forces, moments, density, pressure, energy, thermal transfer, waves, light, electricity, transformers and radioactivity.
PART 8Extended response
[16 marks]
Two longer questions, 8 marks each, marked on your understanding, reasoning and communication. Show your working and explain in full sentences. You can re-mark after improving an answer.
Question A — Chemistry investigation [8]
A student investigates how the concentration of hydrochloric acid affects the rate of reaction with calcium carbonate chips.
(a) Describe how to carry out a fair investigation, naming the variable changed, the variable measured, and two variables kept the same.
(b) Predict what happens to the rate as concentration increases and explain why using collision theory.
0 words · aim for 150–250
Question B — Maths reasoning [8]
Two similar cylinders have heights in the ratio 2 : 5. The smaller cylinder has a volume of 80 cm³.
(a) Work out the volume of the larger cylinder, showing your method clearly.
(b) A student answers 200 cm³. Explain exactly what mistake they have made, and why volume does not scale in the same way as length.