Matter and its Properties Quiz - CBSE Class 9 Science

Free practice quiz: Matter and its Properties (CBSE Class 9 Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is matter?

   1. Anything that has mass and occupies space
   2. Anything that can be seen
   3. Anything that is solid
   4. Anything that moves
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   Answer: A. Anything that has mass and occupies space

   Matter is defined as anything that has mass and occupies space, which includes solids, liquids, and gases.

2. Which of the following processes is involved in changing a solid directly into a gas?

   1. Condensation
   2. Sublimation
   3. Evaporation
   4. Freezing
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   Answer: B. Sublimation

   Sublimation is the process where a solid changes directly into a gas without passing through the liquid phase.

3. Which term describes the amount of space an object occupies?

   1. Mass
   2. Density
   3. Volume
   4. Weight
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   Answer: C. Volume

   Volume is the measure of the amount of space an object occupies, typically measured in liters or cubic meters.

4. What is the principle that states matter cannot be created or destroyed in a chemical reaction?

   1. Law of Conservation of Energy
   2. Law of Conservation of Mass
   3. Law of Thermodynamics
   4. Law of Definite Proportions
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   Answer: B. Law of Conservation of Mass

   The Law of Conservation of Mass states that in a closed system, matter cannot be created or destroyed during a chemical reaction.

5. Why do gases expand to fill their containers?

   1. They have high density
   2. They have strong attractive forces
   3. They have high kinetic energy
   4. They have low mass
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   Answer: C. They have high kinetic energy

   Gases expand to fill their containers because their particles have high kinetic energy, causing them to move freely and spread out.

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