NCERT Solutions For Class 6 Science Chapter 14 Water - 2025-26
FAQs on NCERT Solutions For Class 6 Science Chapter 14 Water - 2025-26
1. What are the main sources of water as listed in the NCERT Solutions for Class 6 Science Chapter 14?
According to the NCERT solutions for the 2025-26 session, the primary sources of water discussed are rivers, lakes, ponds, wells, and rain. The solutions explain that while oceans hold most of the Earth's water, it is saline and not directly usable for most purposes. Freshwater is primarily sourced from these bodies and through groundwater extraction.
2. How should one correctly answer the question 'How are clouds formed?' based on the CBSE pattern for Class 6?
To provide the correct answer as per the NCERT methodology, you should follow these steps:
- Evaporation: Water from sources like oceans, rivers, and lakes heats up due to the sun and turns into water vapour.
- Rising Air: This warm, moist air is light and rises high into the atmosphere.
- Condensation: As the air rises, it cools down. The water vapour in it condenses to form tiny droplets of water.
- Cloud Formation: These tiny water droplets cluster together and float in the air, appearing to us as clouds.
3. What is the step-by-step method to explain the water cycle as per the NCERT Solutions for Chapter 14?
The NCERT solution explains the water cycle as a continuous process involving four main stages:
- Evaporation and Transpiration: Water turns into vapour from water bodies (evaporation) and plants (transpiration) and enters the atmosphere.
- Condensation: The water vapour rises, cools, and changes back into tiny water droplets, forming clouds.
- Precipitation: When the water droplets in clouds become too heavy, they fall back to Earth as rain, snow, or hail.
- Collection: The fallen water collects in rivers, lakes, oceans, and as groundwater, ready to start the cycle again.
4. How do the NCERT solutions explain the causes of floods and droughts?
The NCERT solutions for Class 6 Science explain that these are two opposite conditions related to rainfall. A flood is caused by excessively heavy rainfall over a short period, leading to rivers and lakes overflowing their banks. A drought occurs due to a lack of rainfall for a prolonged period, causing severe water scarcity, drying up of water bodies, and crop failure.
5. What are the two main methods for water conservation suggested in the NCERT exercises for Chapter 14?
The NCERT solutions for the 2025-26 syllabus highlight two primary methods for conserving water:
1. Rainwater Harvesting: This is the process of collecting and storing rainwater from rooftops and other surfaces instead of letting it run off. This stored water can be used later or used to recharge groundwater.
2. Building Dams and Reservoirs: Constructing dams on rivers helps store large amounts of water, which can be used for irrigation, generating electricity, and supplying water to towns and cities during dry periods.
6. Why is it incorrect to say that the water cycle 'starts' with evaporation? How do the NCERT solutions imply its continuous nature?
The NCERT solutions present the water cycle as a continuous, never-ending process. It is called a 'cycle' because it has no true starting or ending point. While evaporation is often taught as the first step for simplicity, water is simultaneously precipitating, collecting in rivers, and condensing in the atmosphere all over the world. The correct understanding is that all stages—evaporation, condensation, precipitation, and collection—are happening concurrently, making it a perpetual loop.
7. How does solving the NCERT question on transpiration help in understanding the complete water cycle?
Solving the NCERT question on transpiration is crucial because it highlights that water bodies are not the only source of atmospheric water vapour. Transpiration is the process where plants release water vapour from their leaves. This shows that living organisms, especially forests, play a significant role in cloud formation and rainfall patterns. Ignoring transpiration would give an incomplete picture of the water cycle, underestimating the role of vegetation in our climate.
8. The NCERT chapter discusses conserving water. Why is conserving water in cities often more challenging than in villages, based on the chapter's concepts?
Based on the concepts in Chapter 14, water conservation is more challenging in cities due to several factors:
- Lack of Open Spaces: Cities have vast concrete surfaces that prevent rainwater from seeping into the ground to recharge groundwater levels.
- High Population Density: The per capita demand for water is very high due to concentrated populations.
- Dependency on Distant Sources: Cities often rely on water transported from distant rivers and lakes, making them vulnerable to shortages in those sources. In villages, traditional methods like ponds and wells are more common, and there is more open land for rainwater to be absorbed.






















