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

Starting out on your journey of discovering science in Class 6 is exhilarating and perhaps a little scary. This is where the NCERT Solutions for Chapter 8: A Journey Through States of Water comes into play; they provide some support for learning and make the process more fun and clear for young minds walking into the world of science.

Science is ultimately about making sense of the world: What is this world made of, and why do things happen the way they do? It's an empirical process involving observation, experimentation, and evidence. Studying science helps instill curiosity, the ability to ask about things around us, and engage in reasoning skills that stretch beyond the school context.

The NCERT Solutions for Class 6 Science Chapter 8 help students to lay the groundwork for a more intelligent way of thinking and help keep their minds curious when understanding how the world works. In working through these solutions and content students begin to understand science not just as a topic, but an observing and experiencing of the world around us wonderingly, clearly, and with critical thinking.

1.0NCERT Solutions Class 6 Science Chapter 8: A Journey Through States of Water - Download PDF

Download the free PDF of the NCERT Solutions for Class 6 Science Chapter 8 - "A Journey Through The States of Water" from below:

2.0Key Concepts in Chapter 8: A Journey Through States of Water

In the NCERT textbook, particularly in Class 6 Science, the chapter “A Journey Through States of Water” typically introduces students to the fundamental concepts of the different states of matter, with a specific focus on water. It explores how water changes its form and the processes involved in these transformations.

World Full of Science Chapter Introduction: The chapter opens by introducing water as a ubiquitous substance and highlighting its different forms observed in daily life. It promotes natural curiosity in students about how and why water exists in these varied states.

States of Matter (with focus on Water): It introduces the three main states of matter:

• Solid: Explains the characteristics of the solid state, using ice as a primary example.
• Liquid: Describes the properties of the liquid state, with liquid water being the main focus.
• Gas: Illustrates the characteristics of the gaseous state, using water vapor as an example.

Changes of State: The chapter delves into the processes by which water changes from one state to another:

• Melting: The process of a solid changing into a liquid (ice to water).
• Freezing: The process of a liquid changing into a solid (water to ice).
• Evaporation: The process of a liquid changing into a gas (water to water vapor).
• Condensation: The process of a gas changing into a liquid (water vapor to water droplets).

The Water Cycle: A key concept covered is the water cycle, explaining how water continuously moves through the environment, changing states as it goes. This includes:

• Evaporation from water bodies.
• Condensation forming clouds.
• Precipitation (rain, snow, hail).
• Collection back into water bodies.

Importance of Water: The chapter also touches upon the significance of water in various aspects of life and the environment.

Real-life Examples: The chapter is based on real-life examples to help students understand scientific concepts, using incidents and scenarios that students can relate to, from simple daily life examples for Class 6 such as seeing ice melt in a glass or steam rising from boiling water.

Here are some common subtopics covered in this chapter:

• Introduction to Water
• What is water?
• Where do we find water?
• States of Water
• Solid state (ice)
• Liquid state (water)
• Gaseous state (water vapor/steam)
• Changes of State in Water
• Melting and freezing
• Evaporation and condensation
• The Water Cycle
• Understanding the continuous movement of water
• Role of sun's heat in the water cycle
• Formation of clouds and rain
• Importance of Water in Daily Life
• Uses of water at home and for plants/animals
• Conservation of water (sometimes briefly mentioned)
• Simple Experiments with Water
• Hands-on activities to observe changes in the states of water

3.0NCERT Solutions Class 6 Science Chapter 8 - A Journey Through States of Water : Detailed Solution

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 gaseous state.
   (iii) The formation of clouds from tiny water droplets.
   (iv) The conversion of water vapour into its liquid state.
   Ans. (iv)
2. Identify in which of the given processes, evaporation is very important-
   (i) Colouring with
   (a) crayons
   (b) water colours
   (c) acrylic colours
   (d) pencil colours
   Ans. (b)
   (ii) Writing on paper with
   (a) pencil
   (b) ink pen
   (c) ball point pen
   Ans. (b)
3. We see green coloured plastic grass at many places these days. Space around natural grass feels cooler than space around the plastic grass. Can you find out why?
   Ans. Natural grass cools the surrounding area through the process of transpiration and evaporation, which removes heat from the air. Plastic grass does not have this cooling effect as it does not allow for the evaporation of water.
4. Give examples of liquids other than water, which evaporate.
   Ans. Examples of liquids that evaporate include alcohol, acetone, petrol, and perfume.
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?
   Ans. Fans help to dry wet clothes faster by increasing air circulation, which helps to remove the humid air near the wet clothes and replace it with drier air, thereby enhancing the rate of evaporation.
6. Usually, when sludge is removed from drains, it is left in heaps next to the drain for 3-4 days. Afterward, it is transported to a garden or a field where it can be used as manure. This approach reduces transportation cost of the sludge and enhances the safety of individuals handling it. Reflect upon it and explain how.
   Ans. Allowing the sludge to dry before transportation reduces its weight and volume, which decreases transportation costs. Drying also helps to reduce the risk of spreading pathogens and makes the sludge easier and safer to handle.
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?
   Ans. Activities involving evaporation include drying clothes, boiling water, mopping floors, and sweating. Understanding evaporation helps us to optimize these processes, such as drying clothes faster by placing them in a windy or sunny area.
8. How is water present in the solid state in nature?
   Ans. Water is present in the solid state as ice in glaciers, ice caps, icebergs, and snow.
9. Reflect on the statement "Water is our responsibility before it is our right." Share your thoughts.
   Ans. This statement emphasizes the importance of conserving and responsibly managing water resources. Water is essential for life and ensuring its availability and quality for future generations is a collective responsibility. Mismanagement and wastage can lead to scarcity and environmental degradation.
10. The seat of a two-wheeler parked on a sunny day has become very hot. How can you cool it down?
    Ans. To cool down a hot seat, you can pour water over it and allow the water to evaporate, which will absorb heat and cool the seat. Alternatively, covering the seat with a wet cloth or moving the vehicle to a shaded area can also help.

4.0Key Features of NCERT Solutions Class 6 Science Chapter 8: A Journey Through States of Water

• A Firm Foundation in Science: The solutions are explicit and systematic answers for students to develop a firm understanding of the basic scientific principles and concepts related to water states in Class 6.
• Increased Conceptual Clarity: They provide solutions, but they also explain the "how" and "why" in explaining scientific phenomena for Class 6 Science Chapter 8, which advances an understanding of the concepts behind the changes of the states of water.
• Increased Problem-Solving Processes: If students engage with the solutions regularly, he/she will develop a systematic way to answer problems; this thinking will help students in Science eventually as they engage in their work which deals with processes like the water cycle; it is a foundational learning skill.
• Increased Preparedness for Exams: It gives students an opportunity to practice answering various questions (multiple choice, short answer, long answer, case study) which will help to prepare students for answering exam questions; students will have the opportunity to make sense of a series of exam questions with confidence and give themselves an opportunity to succeed on the exam.
• Increased Confidence: When students can sensibly understand and solve the textbook questions, it greatly enhances their confidence in the subject generally, particularly when he/she is trying to understand seemingly complex natural phenomena like the water cycle.