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Question (21)

QN0010152

If 5 ice cubes melt completely, what form of water will be obtained?

(A) Solid only
(B) Vapour only
(C) Liquid water
(D) Snow

Correct Answer: C

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Question (22)

QN0010153

Which event in nature is similar to water droplets forming inside the transparent bag?

(A) Groundwater recharge
(B) Cloud formation
(C) River flow
(D) Pond formation

Correct Answer: B

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Question (23)

QN0010154

A bowl of water is left in sunlight for three days. The water level becomes lower. The most likely reason is that water changed into ________.

(A) ice
(B) mud
(C) water vapour
(D) salt

Correct Answer: C

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Question (24)

QN0010155

Which of the following is NOT a form of water mentioned in the chapter?

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

Correct Answer: D

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Question (25)

QN0010156

Water vapour in the atmosphere cools and forms clouds. This shows a change from ________.

(A) liquid to solid
(B) vapour to liquid droplets
(C) solid to vapour
(D) liquid to solid ice

Correct Answer: B

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Question (26)

QN0010157

A student says, “Steam and ice are different substances.” Which statement is correct?

(A) Both are forms of water.
(B) Only steam is water.
(C) Only ice is water.
(D) Neither is water.

Correct Answer: A

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Question (27)

QN0010158

Which condition is most suitable for ice to melt?

(A) Heating
(B) Freezing
(C) Cooling further
(D) Keeping in snow

Correct Answer: A

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Question (28)

QN0010159

During the water cycle, water from oceans and rivers first becomes ________ due to the Sun’s heat.

(A) groundwater
(B) ice
(C) water vapour
(D) hail

Correct Answer: C

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Question (29)

QN0010160

If the Sun’s heat suddenly became much weaker, which process in the water cycle would decrease first?

(A) River flow
(B) Evaporation of water
(C) Groundwater storage
(D) Lake formation

Correct Answer: B

Explanation:

Sunlight provides the heat needed for evaporation.

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Question (30)

QN0010161

Which example shows water changing from liquid to vapour?

(A) Ice melting
(B) Steam from boiling water
(C) Snowfall
(D) Hail formation

Correct Answer: B

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Question (21)

If 5 ice cubes melt completely, what form of water will be obtained?

Explanation:

Link:

Question (22)

Which event in nature is similar to water droplets forming inside the transparent bag?

Explanation:

Link:

Question (23)

A bowl of water is left in sunlight for three days. The water level becomes lower. The most likely reason is that water changed into ________.

Explanation:

Link:

Question (24)

Which of the following is NOT a form of water mentioned in the chapter?

Explanation:

Link:

Question (25)

Water vapour in the atmosphere cools and forms clouds. This shows a change from ________.

Explanation:

Link:

Question (26)

A student says, “Steam and ice are different substances.” Which statement is correct?

Explanation:

Link:

Question (27)

Which condition is most suitable for ice to melt?

Explanation:

Link:

Question (28)

During the water cycle, water from oceans and rivers first becomes ________ due to the Sun’s heat.

Explanation:

Link:

Question (29)

If the Sun’s heat suddenly became much weaker, which process in the water cycle would decrease first?

Explanation:

Link:

Question (30)

Which example shows water changing from liquid to vapour?

Explanation:

Link:

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