Water Practice Questions

Class 6 · Science · 1144 free MCQs with instant results and detailed explanations.

1144

Total

356

Easy

565

Medium

223

Hard

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Topics in Water

Conservation 378

Water Cycle 386

States of Water 380

Sample Questions from Water

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Easy

What is the gaseous state of water called?

A. Steam

B. Ice

C. Liquid Water

D. Fog

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Correct Answer: A

The gaseous state of water is known as steam, which occurs when water is heated and turns into vapor.

Easy

At what temperature does water freeze?

A. 0°C

B. 100°C

C. 50°C

D. 32°C

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Correct Answer: A

Water freezes at 0 degrees Celsius under standard atmospheric conditions.

Easy

If water is heated to 100°C, what change occurs?

A. It evaporates

B. It freezes

C. It condenses

D. It solidifies

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Correct Answer: A

When water reaches 100°C, it evaporates and changes from liquid to gas (steam).

Medium

What is the process called when water turns from a gas to a liquid?

A. Condensation

B. Evaporation

C. Freezing

D. Melting

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Correct Answer: A

Condensation is the process where water vapor cools down and changes into liquid water.

Medium

At what temperature does water boil at standard atmospheric pressure?

A. 0°C

B. 50°C

C. 100°C

D. 150°C

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Correct Answer: C

Water boils at 100°C at standard atmospheric pressure, transitioning from liquid to gas.

Medium

Which of the following states of water is the densest?

A. Ice

B. Liquid water

C. Water vapor

D. Steam

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Correct Answer: B

Liquid water is denser than ice and water vapor, which is why ice floats on water.

Medium

Which process describes water changing from a liquid to a gas?

A. Condensation

B. Evaporation

C. Melting

D. Freezing

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Correct Answer: B

Evaporation is the process where liquid water gains energy and transforms into water vapor.

Hard

What is the process called when water changes from a liquid to a gas?

A. Condensation

B. Evaporation

C. Freezing

D. Sublimation

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Correct Answer: B

Evaporation is the process by which water turns into vapor or gas when heated, indicating a change from liquid to gas.

Hard

At what temperature does water boil under normal atmospheric pressure?

A. 0°C

B. 50°C

C. 100°C

D. 150°C

Show Answer & Explanation

Correct Answer: C

Water boils at 100°C at standard atmospheric pressure, transitioning from liquid to gas.

Q10

Hard

Which of the following is an example of sublimation involving water?

A. Ice melting into water

B. Snow disappearing without melting

C. Water freezing into ice

D. Water vapor condensing into droplets

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Correct Answer: B

Sublimation occurs when solid ice turns directly into water vapor without becoming liquid first, as seen with snow in dry conditions.

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Water — Class 6 Science Practice Questions Online

This page contains 1144 practice MCQs for the chapter Water in Class 6 Science. The questions are organized by difficulty — 356 easy, 565 medium, 223 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.