Class 5 States of Matter Questions with Answers

Everything around us is matter, anything that has mass and takes up space. In Class 5, children learn the three states (solid, liquid and gas), how the particles behave in each, and the changes between them: melting, freezing, evaporation and condensation. The kitchen is the best lab for this topic.

What your child should know

• Solids have a fixed shape and volume; liquids have a fixed volume but take the shape of their container; gases fill any space.
• Melting: solid to liquid. Freezing: liquid to solid.
• Evaporation: liquid to gas. Condensation: gas to liquid.
• Heating or cooling causes these changes.

5 States of matter questions with answers

Read each question with your child and let them answer before you open Show answer.

Q1. Which of the following is a gas?

A) Milk
B) Stone
C) Oxygen
D) Wood

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Answer: C) Oxygen

Oxygen is a gas found in the air around us.

Q2. Which state of matter has a fixed shape and a fixed volume?

A) Solid
B) Liquid
C) Gas
D) Plasma

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Answer: A) Solid

Solids have both a fixed shape and a fixed volume.

Q3. What happens to most substances when they are heated?

A) They become colder.
B) Their particles move faster.
C) Their particles stop moving.
D) They lose all their mass.

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Answer: B) Their particles move faster.

Heating gives particles more energy, causing them to move faster.

Q4. Which process changes water vapour into tiny water droplets?

A) Evaporation
B) Melting
C) Condensation
D) Freezing

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Answer: C) Condensation

Condensation changes water vapour into liquid water when cooled.

Q5. Which statement about gases is correct?

A) They have a fixed shape.
B) They have a fixed volume.
C) They can be compressed easily.
D) Their particles do not move.

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Answer: C) They can be compressed easily.

Gas particles are far apart, so gases can be compressed more easily than solids or liquids.

How to practise states of matter at home

• Watch ice melt, water boil and steam condense on a cold lid, and name each change.
• Sort household things into solids, liquids and gases.
• Ask "what makes clothes dry on a line?" (evaporation).

Keep going

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