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CIE · IGCSE · Co-ordinated Science (Double Award)

Free CIE IGCSE Co-ordinated Science (Double Award)
Practice Paper

8 mixed-difficulty practice questions in the style of real CIE IGCSE papers — answers, mark-scheme-style explanations, and the official exam structure all on one page.

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What the real CIE IGCSE Co-ordinated Science (Double Award) paper looks like

Paper 1 (Multiple Choice)
40 multiple-choice questions, 1 mark each. 45 minutes. Tests breadth of knowledge.
Paper 2 (Core) / Paper 4 (Extended)
Structured written paper. 1 hour 30 minutes (Core) or 1 hour 45 minutes (Extended). Tests depth of understanding and application.
Paper 6 (Alternative to Practical)
Written paper assessing practical skills for candidates without lab access. 1 hour. Worth ~20% of the total.
Total exam time: ~3 hours, depending on tier (Core vs Extended).
Grading: Grades: A* (highest) to G (lowest), with U (ungraded). Most universities require C or above.

Mini practice paper: 8 questions

Mixed-difficulty questions from across the Co-ordinated Science (Double Award) syllabus. Tap "Show answer" after each to check yourself.

Q1 · Difficulty 1/3

Which statement correctly defines pressure?

  1. A: Pressure is the total force acting on a surface.
  2. D: Pressure is the weight of an object divided by its volume.
  3. C: Pressure is the area over which a force acts.
  4. B: Pressure is the force acting per unit area on a surface.
Show answer & explanation
✓ Answer: D — B: Pressure is the force acting per unit area on a surface.
Pressure is defined as the force acting normally (perpendicularly) per unit area on a surface, expressed as p = F ÷ A and measured in Pascals (Pa). Option A confuses pressure with force. Option C describes area, not pressure. Option D describes density (mass per unit volume), not pressure.
Q2 · Difficulty 1/3

A student tests a food sample with Benedict's reagent and observes a brick-red precipitate after heating. Which substance is present in the sample?

  1. A non-reducing sugar such as sucrose
  2. Protein only
  3. Starch only
  4. A reducing sugar such as glucose
Show answer & explanation
✓ Answer: D — A reducing sugar such as glucose
Benedict's reagent turns brick-red (or orange/yellow) when a reducing sugar such as glucose or maltose is present; the Cu²⁺ ions are reduced to Cu₂O. Sucrose is a non-reducing sugar and gives a negative Benedict's result unless hydrolysed first. Starch is tested with iodine solution. Proteins are detected using Biuret reagent.
Q3 · Difficulty 1/3

Which property is characteristic of a substance with a giant ionic lattice structure?

  1. It conducts electricity when solid and when dissolved in water
  2. It is insoluble in water because of strong ionic bonds
  3. It conducts electricity when molten or dissolved in water
  4. It has a low melting point due to weak electrostatic forces
Show answer & explanation
✓ Answer: C — It conducts electricity when molten or dissolved in water
Ionic compounds conduct electricity when molten or dissolved in water because the ions are free to move and carry charge. In the solid state, ions are held in fixed positions in the lattice and cannot move, so they do not conduct. Ionic compounds generally have high melting points due to strong electrostatic attractions, and many are soluble in water.
Q4 · Difficulty 2/3

A machine lifts a load of 500 N through a height of 4.0 m in 10 s. What is the useful power output of the machine?

  1. B. 200 W
  2. D. 20 000 W
  3. A. 125 W
  4. C. 2000 W
Show answer & explanation
✓ Answer: A — B. 200 W
Work done = 500 N × 4.0 m = 2000 J. Power = 2000 J ÷ 10 s = 200 W. Option A divides force by time without using distance. Option C gives only the work done without dividing by time. Option D multiplies all three values together.
Q5 · Difficulty 2/3

Which of the following correctly describes the structure and bonding in a sample of iodine (I₂) at room temperature?

  1. A giant covalent lattice with iodine atoms bonded throughout the structure
  2. Simple molecular with I₂ molecules held together by strong covalent intermolecular forces
  3. Simple molecular with I₂ molecules held together by weak intermolecular forces
  4. A giant ionic lattice with I⁻ ions held by electrostatic forces
Show answer & explanation
✓ Answer: C — Simple molecular with I₂ molecules held together by weak intermolecular forces
Iodine at room temperature consists of I₂ molecules, each held together by a single covalent bond. The individual molecules are attracted to each other by weak intermolecular forces, giving iodine a low melting point and making it a solid that sublimes easily. Option A is incorrect as iodine forms covalent, not ionic, bonds. Option C incorrectly describes a giant covalent structure. Option D incorrectly describes the forces between molecules as covalent — intermolecular forces are not covalent bonds.
Q6 · Difficulty 2/3

A student tests four unknown substances for electrical conductivity in solid state and when dissolved in water. Substance X conducts when dissolved in water but not when solid. What type of structure and bonding does substance X most likely have?

  1. Giant covalent lattice with strong covalent bonds throughout
  2. Simple molecular structure with weak intermolecular forces
  3. Metallic structure with delocalised electrons throughout
  4. Giant ionic lattice with ions held in fixed positions when solid
Show answer & explanation
✓ Answer: D — Giant ionic lattice with ions held in fixed positions when solid
An ionic compound does not conduct electricity in the solid state because the ions are held in fixed positions in the lattice. When dissolved in water, the lattice breaks down and the ions are free to move, allowing electrical conduction. Metals (A) conduct in both states. Simple molecular substances (B) do not conduct in either state as they have no free ions or electrons. Giant covalent substances (D) do not conduct in either state.
Q7 · Difficulty 1/3

Which of the following correctly defines the weight of an object?

  1. The force an object exerts on a surface below it
  2. The resistance of an object to changes in motion
  3. The amount of matter contained in an object
  4. The force of gravity acting on an object's mass
Show answer & explanation
✓ Answer: D — The force of gravity acting on an object's mass
Weight is defined as the gravitational force acting on a mass, given by W = mg, measured in newtons (N). Option A defines mass, not weight. Option C describes a normal contact force or reaction force, not weight itself. Option D defines inertia.
Q8 · Difficulty 1/3

A wooden block of base area 0.05 m² exerts a force of 20 N on the floor. What is the pressure the block exerts on the floor?

  1. A: 1.0 Pa
  2. B: 0.0025 Pa
  3. C: 400 Pa
  4. D: 4000 Pa
Show answer & explanation
✓ Answer: C — C: 400 Pa
Pressure = Force ÷ Area = 20 N ÷ 0.05 m² = 400 Pa. Option A incorrectly divides force by area but uses wrong arithmetic. Option B inverts the formula, dividing area by force. Option D multiplies force by area instead of dividing.
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CIE IGCSE Co-ordinated Science (Double Award) FAQ

What does the CIE IGCSE Co-ordinated Science (Double Award) exam look like?
The CIE IGCSE Co-ordinated Science (Double Award) exam is structured across 3 components. Paper 1 (Multiple Choice): 40 multiple-choice questions, 1 mark each. 45 minutes. Tests breadth of knowledge. Paper 2 (Core) / Paper 4 (Extended): Structured written paper. 1 hour 30 minutes (Core) or 1 hour 45 minutes (Extended). Tests depth of understanding and application. Paper 6 (Alternative to Practical): Written paper assessing practical skills for candidates without lab access. 1 hour. Worth ~20% of the total. Total exam time: ~3 hours, depending on tier (Core vs Extended).
Can I download a free CIE IGCSE Co-ordinated Science (Double Award) past paper?
Real CIE past papers are published directly by CIE on their official website. Kramizo doesn't redistribute copyrighted past papers, but we do generate free AI-written practice papers in the exact same style — same command words, same difficulty tier, same mark conventions. Use this practice paper as warm-up, then time yourself on official past papers before exam day.
How is CIE IGCSE Co-ordinated Science (Double Award) graded?
Grades: A* (highest) to G (lowest), with U (ungraded). Most universities require C or above. Kramizo's practice questions are tagged with difficulty 1-3 mapping roughly to the lower, middle, and top grade boundaries you'll encounter in the real exam.