States of matter — IGCSE Sciences - Co-Ordinated (0973) questions by topic
States of matter questions track substances heated in a water bath through solid and liquid phases, identify which change of state most increases particle separation, tick statements describing solids versus gases, and name the term for a gas changing to liquid, worth from 1 to 12 marks.
Identify, state, describe and explain top the command words in this IGCSE Co-ordinated Sciences topic, with complete also common: describe particle separation using the correct term, condensation rather than a vaguer phrase. 17 real questions from 2023 to 2025 papers sit below. Submitting each answer for instant marking flags a state-change term used the wrong way round before it recurs.
May–June 2025, Paper 11
Which change of state results in the greatest increase in the separation of particles? A gas to liquid B liquid to gas C liquid to solid D solid to liquid
Answer this question and get it marked →May–June 2025, Paper 21
Which statement explains why smoke particles are made to move by other particles in Brownian motion? A The other particles are larger and move faster than smoke particles. B The…
Answer this question and get it marked →May–June 2025, Paper 22
Liquid water boils at 100 °C to produce steam. The volume of the steam at 100 °C is much greater than the volume of the liquid water. Which statement explains the increase in…
Answer this question and get it marked →May–June 2025, Paper 41
Water exists in the solid, liquid or gas state. The particles are arranged differently in each physical state. Name the state where the water particles are furthest apart.
Answer this question and get it marked →Describe one similarity and two differences between boiling and evaporation. similarity ......................................... difference 1…
Answer this question and get it marked →May–June 2024, Paper 11
Cyclopentane is a hydrocarbon. The melting point of cyclopentane is -94 C and its boiling point is 49 C. In process 1, the temperature of cyclopentane changes from 55 C to 45 C.…
Answer this question and get it marked →May–June 2024, Paper 31
Ice is a solid, water is a liquid, steam is a gas. Fig. 5.1 shows the different arrangement of particles in three diagrams A, B and C (A widely spaced, B mostly touching…
Answer this question and get it marked →May–June 2024, Paper 32
A student investigates the motion of smoke particles in air using a microscope (Fig. 12.1: a glass box containing smoke particles and air molecules, lit by a bright light, viewed…
Answer this question and get it marked →May–June 2024, Paper 41
Fig. 6.1 shows a canister filled with liquid chlorine under pressure; when released it turns into a gas. Describe the arrangement and separation of molecules in a liquid and…
Answer this question and get it marked →May–June 2024, Paper 42
A student heats three substances X, Y and Z in a water-bath. Table 2.1: X (solid before, liquid during, solid after); Y (liquid throughout); Z (solid throughout). Draw one line…
Answer this question and get it marked →October–November 2024, Paper 31
The diagram shows the three states of water and the changes of state between them. [Diagram showing: water vapour ←X→ liquid water ←Y→ ice, where X is the change from vapour to…
Answer this question and get it marked →October–November 2024, Paper 41
Describe the arrangement and movement of particles in a solid, a liquid and a gas.
Answer this question and get it marked →May–June 2023, Paper 11
Which term describes a gas changing into a liquid? A boiling B condensation C evaporation D melting
Answer this question and get it marked →May–June 2023, Paper 12
Which statement about gas particles is not correct? A Increasing the temperature of a gas makes the gas particles move more slowly. B The gas particles are in constant random…
Answer this question and get it marked →May–June 2023, Paper 22
Which statement about gas particles is not correct? A Increasing the temperature of a gas makes the gas particles move more slowly. B The gas particles are in constant random…
Answer this question and get it marked →May–June 2023, Paper 41
Fig. 2.1 shows the three states of matter (solid, liquid, gas) with the change melting between solid and liquid, and condensing between gas and liquid. Complete the labels on Fig.…
Answer this question and get it marked →October–November 2023, Paper 31
Table 8.1 gives statements about molecules in solids and gases. Put a tick next to each statement to show if it refers to a solid or to a gas: molecules are closely packed;…
Answer this question and get it marked →Other IGCSE Sciences - Co-Ordinated topics
- Motion, forces and energy (77)
- Electricity and magnetism (65)
- Practical skills (60)
- Organic chemistry (40)
- Waves (40)
- Atoms, elements and compounds (29)
- Organisms and their environment (28)
- Stoichiometry (24)
- Chemical reactions (22)
- The Periodic Table (22)
- Human nutrition (21)
- Reproduction (21)