Class 6 General Science Notes: - Unit-5: Matter as Particle: Solved Exercise (MCQs)

A. MCQs (Choose the Correct Answers).

1. What happens when ice cream changes from solid to liquid?

a. Freezing
b. Melting
c. Burning
d. Evaporation

... Answer is b. Melting
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2. A gas:

a. has a definite volume but no definite shape
b. has a definite shape but no definite volume
c. has fast moving particles
d. has a definite volume and shape

... Answer is c. has fast moving particles
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3. Which statement about the particle theory of matter is true?

a. Arrangement of particles in matter determine the state of matter
b. When a solid melts, its particles no longer exist
c. A solid object cannot move because its particles are at rest
d. Particles in liquids are the farthest apart.

... Answer is a. Arrangement of particles in matter determine the state of matter
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4. What happens when a liquid becomes a gas?

a. Particles slow down
b. Particles push away from each other
c. Particles move closer together
d. Particles make a pattern

... Answer is a. Particles slow down
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5. Butter melts because it (i) ___________ heat and an ice cube melts because (ii) _________ heat.

a. i) absorbs ii) releases
b. i) releases ii) absorbs
c. i) absorbs ii) also absorbs
d. i) releases ii) also releases 

... Answer is c. i) absorbs ii) also absorbs
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MCQs of General Science Class-6:

Unit-1, Unit-2, Unit-3, Unit-4, Unit-5, Unit-6, Unit-7, Unit-8, Unit-9, Unit-10, Unit-11, Unit-12

Source: General Science Book (National Book Foundation, Pakistan)

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