A Journey through | Class 6 Science Notes
By ConceptScroll Team · Published on 17 July 2026 · 3 min read
A Journey through – this guide gives you a concise, exam-ready overview of A Journey through from Class 6 Science, written by ConceptScroll editors and reviewed against the latest NCERT textbook.
A Journey through States of Water
This introductory section presents a scenario where two children, Aavi and Thirav, are enjoying lemonade with ice cubes on a bright summer afternoon. Thirav wonders about the nature of ice and water, noting that ice feels hard and can be held in the hand, whereas water cannot be held in the same way. This leads to the question: are ice and water different substances? Aavi counters this by suggesting they might be the same substance in different forms. To investigate, they consider putting water in a freezer to see if it turns into ice, and whether anything is added to the ice in the freezer. This sets the stage for exploring the states of water and their properties. The section encourages curiosity and questioning, fundamental to scientific inquiry, and introduces the concept that ice and water are different states of the same substance, water.
📊 Diagram: Images show children drinking lemonade with ice cubes, highlighting the difference in texture and form between ice and water, setting the context for the chapter.
🧪 Activity: No specific activity in this introductory section, but encourages observation and questioning.
🔗 Connection: Leads to the next section where an activity is conducted to observe the melting of ice and understand that ice and water are states of the same substance.
Frequently asked questions
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.
The correct answer is (iv) The conversion of water vapour into its liquid state. Condensation is the process where water vapour in the air cools down and changes back into liquid water, forming droplets such as clouds.
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 (ii) Writing on paper with (a) pencil (b) ink pen (c) ball point pen
Evaporation is important in: (i) Colouring with (b) water colours and (c) acrylic colours because the liquid part of the colours evaporates to leave the colour on paper. (ii) Writing on paper with (b) ink pen and (c) ball point pen because the ink dries by evaporation of the solvent.
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?
Natural grass feels cooler because it contains water which evaporates, causing cooling. Plastic grass does not have water and hence no evaporation occurs, so it does not cool the surrounding air.
4. Give examples of liquids other than water that evaporate.
Examples of liquids other than water that evaporate include alcohol, petrol, kerosene, acetone, and cooking oil.
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