Properties of Materials Quiz - CBSE Class 4 Science

Free practice quiz: Properties of Materials (CBSE Class 4 Science). 21 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is the property of materials that allows them to be drawn into wires?

   1. Brittleness
   2. Ductility
   3. Malleability
   4. Hardness
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   Answer: B. Ductility

   Ductility is the property of materials that allows them to be stretched into wires without breaking.

2. What do we call the ability of a material to resist scratching?

   1. Toughness
   2. Hardness
   3. Brittleness
   4. Malleability
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   Answer: B. Hardness

   Hardness refers to a material's resistance to being scratched, with harder materials being able to scratch softer materials.

3. Which of these materials would be suitable for making a strong bridge?

   1. Plastic
   2. Cardboard
   3. Steel
   4. Wood
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   Answer: C. Steel

   Steel is a strong material that can support heavy loads, making it ideal for constructing a bridge.

4. What happens to a metal rod when heated?

   1. It contracts
   2. It expands
   3. It becomes electric
   4. It breaks down
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   Answer: B. It expands

   When a metal rod is heated, the particles vibrate more and take up more space, causing the rod to expand.

5. In terms of intermolecular forces, which of the following substances is likely to have a low boiling point?

   1. Water
   2. Sand
   3. Oxygen
   4. Iron
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   Answer: C. Oxygen

   Oxygen has weak intermolecular forces compared to substances like water and iron, which is why it has a low boiling point.

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