NCERT Solutions for Class 6 Science Chapter 8: A Journey through States of Water (Curiosity)

Question 1. Which of the following best describes condensation?

(i) The conversion of water into its vapour state.

(ii) The process of water changing from a liquid into a gaseous state.

(iii) The formation of clouds from tiny water droplets.

(iv) The conversion of water vapour into its liquid state.

Answer: (iv) The conversion of water vapour into its liquid state describes condensation.

Question 2. Identify in which of the given processes, evaporation is very important

(i) Colouring with

(a) crayons

(b) watercolours

(c) acrylic colours

(d) pencil colours

(ii) Writing on paper with

(a) pencil

(b) ink pen

(c) ballpoint pen

Answer:

(i) (b) watercolours

(ii) (b) ink pen

Question 3. We see green-coloured plastic grass in many places these days. Space around natural grass feels cooler than space around plastic grass. Can you find out why?

Answer: Natural grass cools the surrounding area by absorbing moisture from the air, unlike plastic grass, which does not absorb moisture.

Question 4. Give examples of liquids other than water, which evaporate.

Answer: Liquids like milk, oil, alcohol, eye drops, and sanitiser evaporate other than water.

Question 5. Fans move air around, creating a cooling sensation. It might seem strange to use a fan to dry wet clothes since fans usually make things cooler, not warmer. Normally, when water evaporates, it requires heat, not cold air. What do you think about this?

Answer: Fans help clothes dry faster by increasing air circulation, which speeds up the evaporation process, even though the fan itself may not produce heat.

Question 6. Usually, when sludge is removed from drains, it is left in heaps next to the drain for 3-4 days. Afterwards, it is transported to a garden or a field where it can be used as manure. This approach reduces the transportation cost of the sludge and enhances the safety of individuals handling it. Reflect upon it and explain how.

Answer: By leaving sludge out, the water in it evaporates, reducing its volume, and making it lighter and easier to handle and transport.

Question 7. Observe the activities in your house for a day. Identify the activities that involve evaporation. How does understanding the process of evaporation help us in our daily activities?

Answer: Activities involving evaporation include drying clothes in the sun, noticing the smell of food cooking without being in the kitchen, and wet utensils drying after washing. Understanding evaporation helps us speed up these processes.

Question 8. How is water present in the solid state in nature?

Answer: Water exists in its solid form in nature as ice, snow, and frost.

Question 9. Reflect on the statement “Water is our responsibility before it is our right.” Share your thoughts.

Answer: While we have a right to use water, only a small portion is usable. We must conserve and protect water sources to ensure future availability, as pollution and wastage threaten this resource.

Question 10. The seat of a two-wheeler parked on a sunny day has become very hot. How can you cool it down?

Answer: You can cool the seat by covering it with a wet cloth, sprinkling water on it, using a seat cover, or parking in the shade to reduce direct sunlight.

Sprinkle water on it: Lightly sprinkle water directly on the seat. The evaporating water will help to lower the temperature.

Use a sunshade or cover: If available, use a sunshade or seat cover to protect the seat from direct sunlight, which will help keep it cooler.

Park in the shade: If possible, move the two-wheeler to a shaded area to reduce the seat’s exposure to direct sunlight.

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

• Students learn about the water cycle, including evaporation, condensation, and precipitation, helping them understand the natural water movement.

• The chapter’s activities show how evaporation and condensation happen in everyday life, such as in drying clothes and the appearance of dew.

• Activities involving ice, water, and vapour encourage observation and experimentation, deepening understanding of scientific processes.

• Learning about states of matter and phase transitions prepares students for more advanced scientific topics in higher classes.

• Chapter 8 fosters an understanding of natural processes and how human activities like water usage and storage affect them.

Important Study Material Links for Science Chapter 8 Class 6 

Conclusion

A Journey through the States of Water provides a comprehensive exploration of how water changes between its solid, liquid, and gaseous states. Through simple, everyday observations, students learn the core concepts of evaporation, condensation, and the water cycle. Chapter 8 not only builds a solid foundation in science but also encourages curiosity and critical thinking by engaging students in practical activities that illustrate the changing states of water.

Chapter-wise NCERT Solutions Class 6 Science 

After familiarising yourself with the Class 6 Science Chapter 8 Question Answers, you can access comprehensive NCERT Solutions from all Class 6 Science textbook chapters.

Related Important Links for Class 6 Science 

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