This MCQ module is based on: States of Water
States of Water
Chapter 8 Summary — A Journey through States of Water
Key Terms to Remember
NCERT-Style Exercises
- Solid — example: ice cube in a glass, or snow on a mountain.
- Liquid — example: drinking water, rain, water in a river.
- Gas — example: water vapour in air, steam rising from a boiling kettle.
Condensation is the process of a gas (water vapour) changing back into a liquid (water) when it is cooled.
- Evaporation — The Sun heats water in oceans, rivers, lakes. Water rises as vapour. Plants add vapour through transpiration.
- Condensation — Higher up, the vapour cools and forms tiny droplets that make clouds.
- Precipitation — The clouds drop the water as rain, snow or hail.
- Collection — Water flows into rivers and oceans, or seeps underground. The cycle starts again.
(ii) Cloud — tiny liquid water droplets (and sometimes ice crystals) floating high in the sky.
(iii) Snow — solid state (frozen water crystals).
(iv) Steam — the white mist we see is small liquid droplets; the real invisible hot water vapour is in the gas state. In everyday language, steam is usually called the gas state of water.
- Close the tap while brushing teeth, soaping hands, or shaving. This simple habit can save several litres per person per day.
- Fix leaks immediately. A single dripping tap wastes many buckets every week. Replace worn washers or call a plumber.
- Reuse water wisely. Water used for washing rice or vegetables can water the plants. Collect rainwater from the roof into a clean barrel for gardening and cleaning.
Effects on daily life:
- High humidity makes the day feel sticky — sweat does not dry easily so we feel hot and tired. Clothes take much longer to dry. Bread and biscuits can go soggy.
- Low humidity makes air feel dry — skin becomes rough, lips crack, static electricity is common. Clothes dry very fast.
- Weather scientists use humidity to predict rain and comfort.
- Sweat evaporating from skin cools the body after exercise.
- A wet cloth placed on a fever patient's forehead feels cool.
- Water stored in earthen pots stays cool — water seeping through the clay evaporates and steals heat from the pot.
Materials: Two identical small saucers, a marker, a table fan, same amount of water for both.
Procedure:
- Pour 50 mL of water into each saucer. Mark the water level on the outside with a marker.
- Place saucer A on a calm corner of the table (no air movement).
- Place saucer B in front of a table fan switched on at low speed.
- Keep both at the same room temperature for one hour.
- After one hour, check the new water levels.
The amount of water stayed the same (same mass of particles). Only the arrangement of those particles changed. So water was not created or destroyed; it simply put on a new "costume" — from solid ice to liquid water.
Frequently Asked Questions — States of Water — Chapter 8 Exercises
What does the topic 'States of Water — Chapter 8 Exercises' cover in Class 6 Science?
The topic 'States of Water — Chapter 8 Exercises' is part of NCERT Class 6 Science Chapter 8 — A Journey through States of Water. It covers the key ideas of states of water, water cycle, state changes, NCERT exercises, explained through everyday examples, labelled diagrams and hands-on activities from the NCERT Curiosity textbook. Class 6 students learn simple definitions, see why each idea matters in daily life, and try short experiments and observations. The lesson uses easy language, colourful pictures and small questions so that young learners build a strong base for higher classes and for competency-based questions in CBSE school tests.
Why is 'States of Water — Chapter 8 Exercises' important for Class 6 NCERT Science?
'States of Water — Chapter 8 Exercises' is important because it builds the first ideas of science that Class 6 students will use again in Class 7, 8 and beyond. NCERT Chapter 8 — A Journey through States of Water — introduces states of water and connects it to things children already see at home, at school and in nature. Learning this topic helps students ask better questions, understand simple news about science, and score well in CBSE tests that use competency-based questions. The chapter also supports NEP 2020 by encouraging curiosity, observation and learning by doing rather than only reading and memorising.
What are the key ideas students should remember from States of Water — Chapter 8 Exercises?
The key ideas in 'States of Water — Chapter 8 Exercises' for Class 6 Science are: states of water, water cycle, state changes, NCERT exercises. Students should be able to say each term in their own words, give one or two easy examples from daily life, and draw a small labelled diagram where needed. A good way to revise is to make flashcards, write a short note in the science notebook, and solve the NCERT in-text and exercise questions of Chapter 8. Linking every idea to something seen at home or school — in the kitchen, garden, playground or sky — makes these ideas easy to remember for unit tests and the annual CBSE examination.
How is States of Water — Chapter 8 Exercises taught using activities in NCERT Curiosity Class 6?
NCERT Curiosity Class 6 Science teaches 'States of Water — Chapter 8 Exercises' through an inquiry-based approach using Predict–Observe–Explain activities. Students first make a guess, then try a small experiment with safe, easily available materials, and finally explain what happened and why. This matches the NEP 2020 focus on learning by doing. For Chapter 8 — A Journey through States of Water — the textbook has hands-on tasks, labelled pictures and thinking questions built for Bloom's Taxonomy Levels 1 to 6. Teachers use these activities, along with competency-based questions (CBQs) and assertion–reason items, to check real understanding instead of only rote learning.
How should Class 6 students prepare for the Chapter 8 exercises?
To prepare for the Chapter 8 — A Journey through States of Water — exercises in NCERT Class 6 Science, students should first revise the theory in Parts 1–3 and make a short note of definitions and diagrams for states of water, water cycle, state changes, NCERT exercises. Next, try each exercise question on their own before looking at the solution. Pay special attention to MCQs, match-the-following, fill-in-the-blanks, assertion–reason and short-answer items, as these often appear in CBSE competency-based tests. Practising with the NCERT Curiosity textbook, the exemplar questions, and the MyAiSchool practice bank helps Class 6 students score better in unit tests and the annual examination.
How does 'States of Water — Chapter 8 Exercises' connect to other chapters of Class 6 Science?
'States of Water — Chapter 8 Exercises' connects to many other chapters in NCERT Class 6 Science Curiosity. The ideas of states of water come back when students study related topics like diversity in the living world, food, magnets, measurement, materials, temperature, water, separation, habitats, natural resources and the solar system. For example, what students learn here helps them build mental pictures for later chapters and for Class 7 and Class 8 Science. Teachers often ask cross-chapter questions in CBSE exams to check if students can use what they learned in Chapter 8 — A Journey through States of Water — in new situations. This linked approach matches the NEP 2020 and NCF 2023 focus on holistic, competency-based learning.