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Question (1)

QN004902

Which process changes ice into water?

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

Correct Answer: C

Explanation:

Melting changes ice into water.

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Question (2)

QN004903

Which process changes water into ice?

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

Correct Answer: B

Explanation:

Freezing changes water into ice.

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Question (3)

QN004904

To convert water into water vapour, we must generally:

(A) Cool it
(B) Freeze it
(C) Heat it
(D) Filter it

Correct Answer: C

Explanation:

Heating converts water into water vapour.

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Question (4)

QN004905

Water freezes and changes into ice when placed in a:

(A) Hot oven
(B) Pressure cooker
(C) Freezer
(D) Open field

Correct Answer: C

Explanation:

Water freezes in a freezer.

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Question (5)

QN004906

The process of conversion of a solid into a liquid state is called:

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

Correct Answer: C

Explanation:

Melting is the conversion of a solid into a liquid.

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Question (6)

QN004907

The process of conversion of a liquid into a solid state is called:

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

Correct Answer: D

Explanation:

Freezing converts a liquid into a solid.

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Question (7)

QN004908

Which state of water is represented by ice?

(A) Liquid
(B) Gas
(C) Solid
(D) Vapour

Correct Answer: C

Explanation:

Ice is the solid state of water.

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Question (8)

QN004909

Which state of water is represented by water vapour?

(A) Solid
(B) Liquid
(C) Gaseous
(D) Frozen

Correct Answer: C

Explanation:

Water vapour is the gaseous state of water.

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Question (9)

QN004910

Which of the following can also change from solid to liquid on heating?

(A) Stone
(B) Wax
(C) Sand
(D) Brick

Correct Answer: B

Explanation:

Wax melts on heating.

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Question (10)

QN004911

Liquid wax can be converted back into solid wax by:

(A) Heating
(B) Stirring
(C) Cooling
(D) Shaking

Correct Answer: C

Explanation:

Cooling changes liquid wax into solid wax.

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Question (1)

Which process changes ice into water?

Explanation:

Link:

Question (2)

Which process changes water into ice?

Explanation:

Link:

Question (3)

To convert water into water vapour, we must generally:

Explanation:

Link:

Question (4)

Water freezes and changes into ice when placed in a:

Explanation:

Link:

Question (5)

The process of conversion of a solid into a liquid state is called:

Explanation:

Link:

Question (6)

The process of conversion of a liquid into a solid state is called:

Explanation:

Link:

Question (7)

Which state of water is represented by ice?

Explanation:

Link:

Question (8)

Which state of water is represented by water vapour?

Explanation:

Link:

Question (9)

Which of the following can also change from solid to liquid on heating?

Explanation:

Link:

Question (10)

Liquid wax can be converted back into solid wax by:

Explanation:

Link:

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