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 NCERT Solutions for Class 6 Science Chapter 14 Water

NCERT solutions for class 6 science chapter 14 water exercise:

Q. 1. Fill up the blanks in the following:

(a) The process of changing of water into its vapour is called _________________.
(b) The process of changing water vapour into water is called _________________.
(c) No rainfall for a year or more may lead to _________________ in that region.
(d) Excessive rains may cause _________________.

Answer: (a) The process of changing of water into its vapour is called evaporation

(b) The process of changing water vapour into water is called condensation

(c) No rainfall for a year or more may lead to drought in that region.

(d) Excessive rains may cause floods.

Q. 2. State for each of the following whether it is due to evaporation or condensation:

(a) Water drops appear on the outer surface of a glass containing cold water
(b) Steam rising from wet clothes while they are ironed
(c) Fog appearing on a cold winter morning
(d) Blackboard dries up after wiping it
(e) Steam rising from a hot girdle when water is sprinkled on it

Answer: (a) Water drops appear on the outer surface of a glass containing cold water. \rightarrow Condensation

(b) Steam rising from wet clothes while they are ironed. \rightarrow Evaporation

(c) Fog appearing on a cold winter morning. \rightarrow Condensation

(d) Blackboard dries up after wiping it. \rightarrow Evaporation

(e) Steam rising from a hot girdle when water is sprinkled on it. \rightarrow Evaporation

Q. 3. Which of the following statements are “true”?

(a) Water vapour is present in air only during the monsoon. ( )
(b) Water evaporates into air from oceans, rivers and lakes but not from the soil.( )
(c) The process of water changing into its vapour, is called evaporation.( )
(d) The evaporation of water takes place only in sunlight.( )
(e) Water vapour condenses to form tiny droplets of water in the upper layers of air where it is cooler.( )

Answer: (a) Water vapour is present in the air only during the monsoon. FALSE

Correct:- There is always a small amount of water vapour present in the air.

(b) Water evaporates into the air from oceans, rivers and lakes but not from the soil. FALSE
Correct:- Water also evaporates from the soil.

(c) The process of water changing into its vapour is called evaporation. TRUE

(d) The evaporation of water takes place only in sunlight. TRUE

(e) Water vapour condenses to form tiny droplets of water in the upper layers of air where it is cooler. TRUE

Q. 4. Suppose you want to dry your school uniform quickly. Would spreading it near an anghiti or heater help? If yes, how?

Answer: Yes, I will spread it near an angithi or heater, because the heat generated from an angithi or a heater causes the water to evaporate at a faster rate. Therefore, helps in drying the clothes quicker rate.

Q. 5. Take out a cooled bottle of water from refrigerator and keep it on a table. After some time you notice a droplets of water around it. Why?

Answer: This will happen because when we take a water bottle out of the refrigerator, the surface of the water bottle is cold which cools the surrounding air and because of condensation water vapour in the air condenses around the surface of the bottle and form droplets of water around it.

Q. 6. To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet.

Answer: Because as the breath that is coming out of the mouth is moist, thereby making the glass of spectacles cooler. And because of that, water vapours that are present in the air surrounding the glass condense and get attached to the glass surface. Therefore, the glass becomes wet.

Q. 7. How are clouds formed?

Answer: We know that clouds are formed by the process of condensation and evaporation. When water from the oceans, ponds, rivers, lakes, plants, fields, and other land surfaces evaporates, warm and moist air rises in the atmosphere. At higher altitudes, when the air becomes cooler and water vapour contained in the air condenses. On condensation, these form tiny water droplets. These tiny water droplets collect and float in the air as clouds.

Q. 8. When does a drought occur?

Answer: When there is no rain for one or two years then chances of drought occurs. Because usually, due to evaporation and transpiration water is lost by soil, pods, lakes etc. But if no rainfall will occur for a longer period of time, then the water level in various ponds, river, lakes and wells decreases. This leads to the condition of drought.

Chapter No. Chapter Name
Chapter 1 NCERT solutions for class 6 Science Chapter 1 Food: Where Does It Come From?
Chapter 2 NCERT solutions for class 6 Science Chapter 2 Components of Food
Chapter 3 NCERT Solutions for class 6 science chapter 3 Fibre to Fabric
Chapter 4 NCERT Solutions for class 6 science chapter 4 Sorting Materials into Groups
Chapter 5 NCERT Solution for class 6 science chapter 5 Separation of Substances
Chapter 6 NCERT solutions for class 6 science chapter 6 Changes around Us
Chapter 7 NCERT solutions for class 6 science chapter 7 Getting to Know Plants
Chapter 8 NCERT Solutions for class 6 science chapter 8 Body Movements
Chapter 9 NCERT solutions for class 6 science chapter 9 The Living Organisms Characteristics and Habitats
Chapter 10 NCERT Solution for class 6 science chapter 10 Motion and Measurement of Distances
Chapter 11 NCERT solution for class 6 science chapter 11 Light, Shadows, and Reflections
Chapter 12 NCERT solutions for class 6 science chapter 12 Electricity and Circuits
Chapter 13 NCERT solutions for class 6 science chapter 13 Fun with Magnets
Chapter 14 NCERT Solution for class 6 science chapter 14 Water
Chapter 15 NCERT solutions for class 6 Science Chapter 15 Air Around Us
Chapter 16 NCERT Solutions for Class 6 Science Chapter 16 Garbage In, Garbage Out

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NCERT Solutions for Class 6 Science chapter 14 Water
The CBSE NCERT Solutions for Class 6 Science chapter 14 Water are very useful for students to prepare for final exams. Click to download.
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