How can water be converted into ice?

By putting it in a cold environment

NCERT Solutions Class 6 Science Chapter 8 – A Journey Through States of Water

Name: A Journey Through States of Water – Class 6 Science
Uploaded: 2026-05-31
Description: This chapter explores the different states of water—solid, liquid, and gas— and how they change through processes like evaporation, condensation, melting, and freezing. It also explains the water cycle, cooling effects, and why water conservation is important.

Class 6 Science

Last Updated: 31 May 2026

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Chapter Introduction

This chapter explores the different states of water—solid, liquid, and gas— and how they change through processes like evaporation, condensation, melting, and freezing. It also explains the water cycle, cooling effects, and why water conservation is important.

हिंदी में (Hindi)

यह अध्याय पानी की विभिन्न अवस्थाओं — ठोस, तरल और गैस — को समझाता है, और यह बताता है कि वाष्पीकरण, संघनन, गलन और जमाव जैसी प्रक्रियाओं से ये अवस्थाएँ कैसे बदलती हैं। यह जल चक्र, शीतलन प्रभावों और जल संरक्षण के महत्व को भी स्पष्ट करता है।

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Important Points

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Practice MCQ Questions (57 questions)

Q1. What should be marked on the glass tumbler to show that water is not seeping from it?

Q2. How many states of water are observed in daily life?

Q3. What happens to ice when it is heated?

Q4. What happens to water when it is further heated after melting?

Q5. What is the process of a solid converting to a liquid called?

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Tough Words (Glossary)

Evaporation

Meaning: Changing of liquid water into water vapour

अर्थ: वाष्पीकरण

"Evaporation dries wet clothes on a sunny day."

Condensation

Meaning: Changing of water vapour into liquid water

अर्थ: संघनन

"Drops on a cold glass form due to condensation."

Vapour

Meaning: Gas form of a substance, especially water

अर्थ: वाष्प

"Boiling water produces water vapour."

Gaseous

Meaning: Relating to gas state

अर्थ: गैसीय

"Steam is water in the gaseous state."

Droplet

Meaning: A very small drop of liquid

अर्थ: बूंदिका

"Mist is made of tiny droplets of water."

Humidity

Meaning: Amount of water vapour in the air

अर्थ: आर्द्रता

"High humidity slows the drying of clothes."

Seep

Meaning: To pass slowly through a surface or material

अर्थ: रसना/रिसना

"Water can seep through soil."

Disappearing

Meaning: Becoming unseen or no longer present

अर्थ: गायब होना

"The puddle is disappearing in the sun."

Investigate

Meaning: To carry out a study or experiment

अर्थ: जांच करना

"We will investigate why the floor dries fast."

Infer

Meaning: To draw a conclusion from evidence

अर्थ: निष्कर्ष निकालना

"From the data we infer that it was evaporation."

Conclude

Meaning: To reach a final decision or judgement

अर्थ: निष्कर्ष पर पहुँचना

"We conclude that no water seeped through the glass."

Sprinkle

Meaning: To scatter small drops of liquid

अर्थ: छिड़कना

"They sprinkle water on the hot pan."

Accumulate

Meaning: To gather or collect

अर्थ: इकट्ठा होना

"Drops accumulate on the steel plate lid."

Deposit (verb)

Meaning: To place or lay down in a layer

अर्थ: जमना/जमा होना

"Tiny drops deposit on the outer surface."

Prediction

Meaning: A statement about what you think will happen

अर्थ: भविष्यवाणी/पूर्वानुमान

"Make a prediction before the activity."

Observation

Meaning: Careful watching and noting of facts

अर्थ: अवलोकन

"Write your observation in the notebook."

Weighing balance

Meaning: Instrument used to measure mass

अर्थ: तौल तराजू/तुला

"The weighing balance showed an increase in mass."

Exposure

Meaning: Being open to contact with something

अर्थ: सामना/उद्घाटन

"Greater exposure to air speeds evaporation."

Room temperature

Meaning: Usual temperature of an indoor space

अर्थ: कक्ष तापमान

"Evaporation occurs even at room temperature."

Puddle

Meaning: A small pool of water on the ground

अर्थ: छोटा जलकुंड/कीचड़ का गड्ढा

"Puddles form after rain."

Utensil

Meaning: A container used in the kitchen

अर्थ: बर्तन

"Water did not seep through the utensil."

Steel plate

Meaning: A flat metal dish used to cover or serve

अर्थ: स्टील की थाली/प्लेट

"Cover the pot with a steel plate."

Tumbler

Meaning: A drinking glass without a handle

अर्थ: गिलास

"Ice was added to the glass tumbler."

Mass

Meaning: Amount of matter in an object

अर्थ: द्रव्यमान

"The mass increased due to condensation."

State (of matter)

Meaning: Form in which matter exists: solid, liquid, gas

अर्थ: अवस्था

"Water exists in three states."

Solid

Meaning: State with fixed shape and volume

अर्थ: ठोस

"Ice is solid water."

Liquid

Meaning: State with fixed volume but changing shape

अर्थ: द्रव

"Water is a liquid."

Gas

Meaning: State without fixed shape or volume

अर्थ: गैस

"Water vapour is a gas."

Retain

Meaning: To keep or hold

अर्थ: बनाए रखना

"Ice retains its shape in any container."

Spread

Meaning: To extend over a larger area

अर्थ: फैलना

"Water spreads on a flat plate."

Volume

Meaning: Space occupied by a substance

अर्थ: आयतन

"Water keeps the same volume when poured."

Container

Meaning: An object used to hold something

अर्थ: पात्र/बर्तन

"Water takes the shape of its container."

Freezer

Meaning: Very cold compartment for freezing

अर्थ: फ़्रीज़र

"Water freezes into ice in the freezer."

Melt

Meaning: To change from solid to liquid

अर्थ: पिघलना

"Ice will melt at room temperature."

Freezing

Meaning: Changing from liquid to solid

अर्थ: जमना/ठोस बनना

"Freezing turns water into ice."

Heating

Meaning: Giving heat to raise temperature

अर्थ: तापन/गर्म करना

"Heating water makes it evaporate faster."

Cooling

Meaning: Removing heat to lower temperature

अर्थ: शीतलन/ठंडा करना

"Cooling causes condensation."

Convert

Meaning: To change from one form to another

अर्थ: परिवर्तित करना

"Steam converts into water on cooling."

Surface

Meaning: The outside part or boundary of an object

अर्थ: सतह

"Drops formed on the cold surface."

Windy

Meaning: With a lot of wind

अर्थ: हवादार

"Clothes dry faster on a windy day."

Sanitiser

Meaning: Liquid used to kill germs on hands

अर्थ: सैनिटाइज़र

"Sanitiser dries quickly due to evaporation."

Earthen pot (Matka)

Meaning: Clay pot used to store water

अर्थ: मटका (मिट्टी का घड़ा)

"Water stays cool in an earthen pot."

Cooling effect

Meaning: Lowering of temperature due to evaporation

अर्थ: शीतल प्रभाव

"Sweat gives a cooling effect as it evaporates."

Moist

Meaning: Slightly wet or damp

अर्थ: नम

"Keep the sand moist for better cooling."

Atmosphere

Meaning: Layer of air surrounding the Earth

अर्थ: वायुमंडल

"Water vapour rises into the atmosphere."

Dew

Meaning: Drops formed by condensation near the ground

अर्थ: ओस

"We see dew on grass in the morning."

Hail

Meaning: Frozen balls of ice that fall from clouds

अर्थ: ओले

"Under special conditions, rain falls as hail."

Water cycle

Meaning: Continuous movement of water on Earth

अर्थ: जल चक्र

"Evaporation and condensation drive the water cycle."

Conservation

Meaning: Protection and careful use of resources

अर्थ: संरक्षण

"We must practise water conservation."

Shortage

Meaning: A state of not having enough

अर्थ: कमी

"Many cities face water shortage in summer."

Pollution

Meaning: Making air, water, or land dirty and unsafe

अर्थ: प्रदूषण

"Keep water bodies free from pollution."

← Previous

Ch 7: Temperature And Its Measurement

Ch 9: Methods of Separation in Everyday Life

NCERT Solutions Class 6 Science Chapter 8 – A Journey Through States of Water

Chapter Introduction

Watch Video Lecture

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Important Points

Practice MCQ Questions (57 questions)

Q1. What should be marked on the glass tumbler to show that water is not seeping from it?

Q2. How many states of water are observed in daily life?

Q3. What happens to ice when it is heated?

Q4. What happens to water when it is further heated after melting?

Q5. What is the process of a solid converting to a liquid called?

Q6. What is the process of a liquid converting to a solid called?

Q7. How can water be converted into ice?

Q8. What example is given for a substance other than water that can change states?

Q9. What happens to candle wax when it is heated?

Q10. How can liquid wax be converted back into a solid?

Q11. What is the gaseous state of water called?

Q12. Where is water vapour present even at room temperature?

Q13. What happens when water evaporates from clothes or floors?

Q14. What property does water vapour exhibit in the gaseous state?

Q15. What is one way to speed up the evaporation of water?

Q16. What would happen to the evaporation rate if milk is used instead of water?

Q17. How can you explore other conditions that affect evaporation?

Q18. What effect does placing a bottle cap with water in sunlight have?

Q19. What effect does wind have on the drying of clothes?

Q20. What observation is made about clothes drying on a rainy day?

Q21. Why does water in an earthen pot stay cooler than in a steel pot?

Q22. What is one activity that shows the cooling effect of evaporation?

Q23. What is the water cycle?

Q24. How are clouds formed in the atmosphere?

Q25. What is the importance of using water wisely?

Q26. What were Aavi and Thirav drinking on a bright summer afternoon?

Q27. What does ice get converted into when left on a table?

Q28. Are ice and water the same substance?

Q29. What is another name for the different forms of water?

Q30. What did Aavi and Thirav observe about the water puddles in the playground?

Q31. Where did the water in the puddles go?

Q32. What happens to water left on the surface of utensils after washing?

Q33. What did Aavi wonder about the water on the utensils?

Q34. What did Thirav think about the water on the utensils?

Q35. What state does water get converted into after it disappears from a steel plate?

Q36. What happens to water when sprinkled on a hot pan?

Q37. What is the process of water converting into its vapour state called?

Q38. Does evaporation occur only at high temperatures?

Q39. Which of the following is an example of evaporation?

Q40. What might be the reason for the disappearance of water from puddles?

Q41. What happens to hand sanitiser as you rub it on your hands?

Q42. What did Aavi, Thirav, and their friends notice on the outer surface of the glass tumbler?

Q43. What forms after tiny drops on the outer surface of a glass combine?

Q44. What did Aavi notice about the water droplets on the outer surface of the glass tumbler?

Q45. Where do the water droplets on the outer surface of the glass tumbler come from?

Q46. Where else might you see water droplets forming similar to those on the glass?

Q47. When are dew drops commonly seen on plants?

Q48. What accumulates on the inner side of the steel plate when boiling water is covered?

Q49. What is the process of converting water vapour into liquid state called?

Q50. Why do we see dew drops more in the morning?

Q51. What happens when water vapour in the air contacts a cold surface?

Q52. What contributes to water vapour in the air?

Q53. Where do dew drops form?

Q54. How does evaporative cooling work?

Q55. What returns water to Earth’s surface?

Q56. Why is water conservation critical?

Q57. Which is NOT a state of water?