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Class 6 Exam  >  Class 6 Tests  >  Important Questions Test: A Journey through States of Water - Class 6 MCQ

Important Questions Test: A Journey through States of Water - Class 6 MCQ


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15 Questions MCQ Test - Important Questions Test: A Journey through States of Water

Important Questions Test: A Journey through States of Water for Class 6 2025 is part of Class 6 preparation. The Important Questions Test: A Journey through States of Water questions and answers have been prepared according to the Class 6 exam syllabus.The Important Questions Test: A Journey through States of Water MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: A Journey through States of Water below.
Solutions of Important Questions Test: A Journey through States of Water questions in English are available as part of our course for Class 6 & Important Questions Test: A Journey through States of Water solutions in Hindi for Class 6 course. Download more important topics, notes, lectures and mock test series for Class 6 Exam by signing up for free. Attempt Important Questions Test: A Journey through States of Water | 15 questions in 15 minutes | Mock test for Class 6 preparation | Free important questions MCQ to study for Class 6 Exam | Download free PDF with solutions
Important Questions Test: A Journey through States of Water - Question 1
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What makes up most of our bodies and Earth’s surface?

Detailed Solution for Important Questions Test: A Journey through States of Water - Question 1
Water covers most of the Earth and is essential for all living beings to survive.
Important Questions Test: A Journey through States of Water - Question 2
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Why is water important for living beings?

Detailed Solution for Important Questions Test: A Journey through States of Water - Question 2
Water helps in digestion, regulates body temperature, and is essential for all life processes.
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Important Questions Test: A Journey through States of Water - Question 3
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Are ice and water the same substance?

Detailed Solution for Important Questions Test: A Journey through States of Water - Question 3
Ice and water are both forms of the same substance, H₂O, but in different states (solid and liquid).
Important Questions Test: A Journey through States of Water - Question 4
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What happens to water when it is sprinkled on a hot pan?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 4
The heat of the pan converts water into steam, which is water in gaseous form.
Important Questions Test: A Journey through States of Water - Question 5
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What is the process of changing liquid water into water vapor called?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 5
Evaporation is the process where liquid water changes into vapor due to heat.
Important Questions Test: A Journey through States of Water - Question 6
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Why do water droplets form on a cold bottle taken out of the fridge?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 6
Water vapor in the air cools and condenses into liquid droplets on the cold bottle.
Important Questions Test: A Journey through States of Water - Question 7
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Which of the following is NOT a state of water?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 7
- Water exists in three primary states: solid, liquid, and gas.
- Solid state is ice, formed when water freezes at 0°C or below.
- Liquid state is the familiar water we drink.
- Gas state is water vapor, which occurs when water evaporates.
- Plasma, while a state of matter, is not applicable to water; it occurs at extremely high temperatures and energy levels, beyond typical conditions for water.
- Thus, plasma is not a state of water.
Important Questions Test: A Journey through States of Water - Question 8
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Which of the following is an example of a liquid state of water?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 8
Water in a glass is in a liquid state as it flows and takes the shape of its container.
Important Questions Test: A Journey through States of Water - Question 9
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What is the process of water changing from gas to liquid called?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 9
Condensation is the process where water vapor turns into liquid droplets.
Important Questions Test: A Journey through States of Water - Question 10
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What is humidity?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 10
Humidity measures how much water vapor is present in the air.
Important Questions Test: A Journey through States of Water - Question 11
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What happens when water is cooled?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 11
- When water is cooled below 0°C (32°F), it undergoes a phase change.
- This process is called freezing, where liquid water molecules lose energy and slow down.
- As the temperature drops, these molecules arrange themselves into a solid structure, forming ice.
- Ice is less dense than water, which is why it floats.
- Therefore, the correct answer is that water turns into ice when cooled sufficiently.
Important Questions Test: A Journey through States of Water - Question 12
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Which machine collects water from humid air and makes it drinkable?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 12
An AWG extracts moisture from air and converts it into drinkable water.
Important Questions Test: A Journey through States of Water - Question 13
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Which factor increases the rate of evaporation?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 13
A larger surface area allows more water to evaporate quickly.
Important Questions Test: A Journey through States of Water - Question 14
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Why do clothes dry faster on a windy day?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 14
Wind increases air movement, which speeds up evaporation and helps dry clothes faster.
Important Questions Test: A Journey through States of Water - Question 15
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What is the cooling effect of evaporation?
Detailed Solution for Important Questions Test: A Journey through States of Water - Question 15
- When water evaporates, it transitions from a liquid to a gas.
- This process requires energy, known as latent heat, which is absorbed from the surroundings.
- As the heat is absorbed, the temperature of the surrounding area decreases.
- This is why sweating helps cool the body; the evaporation of sweat removes heat, making you feel cooler.
- Thus, evaporation effectively cools the environment rather than making it hotter.
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