MCQ Questions for Class 6 Science Chapter 14 Water with Answers

We have compiled the NCERT MCQ Questions for Class 6 Science Chapter 14 Water with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 6 Science with Answers on a daily basis and score well in exams. Refer to the Water Class 6 MCQs Questions with Answers here along with a detailed explanation.

Water Class 6 MCQs Questions with Answers

Choose the correct option.

Question 1.
How much percentage of water does a human body contains?
(a) 60%
(b) 70%
(c) 80%
(d) 90%

Answer

Answer: (b) 70%


Question 2.
Water is used for
(a) bathing
(b) cooking
(c) drinking
(d) all of these

Answer

Answer: (d) all of these


Question 3.
The water in oceans cannot be used because
(a) it is salty
(b) it is harmful
(c) it is toxic
(d) it is acidic

Answer

Answer: (a) it is salty


Question 4.
Which of the following are the sources of water?
(a) Rivers
(b) Ponds
(c) Lakes
(d) All of these

Answer

Answer: (d) All of these


Question 5.
The place where underground water comes out on the surface of earth on its own is called
(a) rainwater
(b) spring
(c) sea level
(d) glacier

Answer

Answer: (b) spring


Question 6.
Which of the following is the largest source of water?
(a) Sea
(b) Ocean
(c) Pond
(d) Lake

Answer

Answer: (b) Ocean


Question 7.
Potable water is
(a) ocean water
(b) groundwater
(c) river water
(d) pond water

Answer

Answer: (b) groundwater


Question 8.
Which is not a part of water cycle?
(a) Cloud formation
(b) Rain
(c) Drinking by animals
(d) Sun

Answer

Answer: (c) Drinking by animals


Question 9.
Which one of the following is a purest form of water?
(a) River water
(b) Groundwater
(c) Rainwater
(d) Ocean water

Answer

Answer: (c) Rainwater


Question 10.
The process of conversion of water into vapours is called
(a) transpiration
(b) evaporation
(c) condensation
(d) none of these

Answer

Answer: (b) evaporation


Question 11.
The process by which plants lose water is
(a) photosynthesis
(b) translocation
(c) transpiration
(d) transportation

Answer

Answer: (c) transpiration


Question 12.
The amount of water recommended by the UN for drinking, washing, cooking and maintaining proper hygiene is
(a) 50 litres per person per day
(b) 60 litres per person per day
(c) 70 litres per person per day
(d) 80 litres per person per day

Answer

Answer: (a) 50 litres per person per day


Question 13.
Boiling point of water is
(a) 100°C
(b) 99°C
(c) 101°C
(d) 102°C

Answer

Answer: (a) 100°C


Question 14.
The water which had escaped from the earth as vapour returns to the earth in the form of
(a) precipitation
(b) evaporation
(c) infiltration
(d) condensation

Answer

Answer: (a) precipitation


Question 15.
Heavy rains may cause
(a) floods
(b) drought
(c) rainlessness
(d) both (a) and (c)

Answer

Answer: (a) floods


Question 16.
Which is a result of condensation of water vapours?
(a) Rain
(b) Snowfall
(c) Hail
(d) Tiny water droplets

Answer

Answer: (d) Tiny water droplets


Question 17.
When we step out from an air-conditioned car, on a humid day, our spectacles becomes misty and we cannot see anything clearly. This happens due to a process known as
(a) Decantation
(b) evaporation
(c) precipitation
(d) condensation

Answer

Answer: (d) condensation


Question 18.
The process by which plants lose water is
(a) photosynthesis
(b) translocation
(c) transpiration
(d) transportation

Answer

Answer: (c) transpiration


Question 19.
The process of conversion of water into its vapour is called
(a) transpiration
(b) evaporation
(c) condensation
(d) None of the above

Answer

Answer: (b) evaporation


Question 20.
Which of the following is the most impure form of natural water?
(a) Lake water
(b) Pond water
(c) Ground water
(d) Sea water

Answer

Answer: (d) Sea water


Question 21.
In which of the following does condensation of water vapour take place?
A. Breathing on to a mirror
B. Heating an open beaker in water
C. Leaving a glass of ice on the table
D. Leaving a cup of water by the window
(a) A and B
(b) B and C
(c) A and C
(d) C and D

Answer

Answer: (c) A and C


Question 22.
In how many states of matter does water exist?
(a) One
(b) Two
(c) Three
(d) Four

Answer

Answer: (c) Three


Question 23.
The clothes dry in the sunlight by the process of
(a) condensation
(b) evaporation
(c) drought
(d) transpiration

Answer

Answer: (b) evaporation


Question 24.
Which of these is responsible for the formation of clouds?
(a) Conservation
(b) Respiration
(c) Transpiration
(d) None of these

Answer

Answer: (c) Transpiration


Question 25.
Drought causes water
(a) profitability
(b) scarcity
(c) both (a) and (b)
(d) none of these

Answer

Answer: (b) scarcity


Question 26.
The colour of potable water is
(a) colourless
(b) milky
(c) pink-coloured
(d) red-coloured

Answer

Answer: (a) colourless


Question 27.
Evaporation of water is due to the heat of the
(a) sun
(b) moon
(c) star
(d) none

Answer

Answer: (a) sun


Fill in the blanks with suitable word/s.

Question 1.
More than ……………. of the earth’s surface is covered with water.

Answer

Answer: two-thirds


Question 2.
……………. is needed for drinking, bathing, washing our clothes and many more functions.

Answer

Answer: Water


Question 3.
About ……………. of the total earth’s water is available for use.

Answer

Answer: 0.01%


Question 4.
“Catch water where it falls” is the basic idea behind ……………. harvesting.

Answer

Answer: rainwater


Question 5.
The rivers get their water from the melting of snow lying on the peaks of snow mountains called …………….

Answer

Answer: glaciers


Question 6.
Region below the ground which is saturated with water is known as …………….

Answer

Answer: water table


Question 7.
The water cycle is also known as …………….

Answer

Answer: hydrologic cycle


Question 8.
Ice, water and ……………. are the three states of same material.

Answer

Answer: gas


Question 9.
Water is considered as ……………. resource on the earth.

Answer

Answer: renewable


Question 10.
Water vapours get continuously added to atmosphere due to evaporation and …………….

Answer

Answer: transpiration


Question 11.
The process of conversion of vapours into liquid is known as …………….

Answer

Answer: condensation


Question 12.
Falling of rain is also called …………….

Answer

Answer: precipitation


Question 13.
Water drops present on grass during winter morning is called …………….

Answer

Answer: dew


Question 14.
Ocean act as a ……………. for large number of plants and animals.

Answer

Answer: habitat


Question 15.
Lack of rain causes …………….

Answer

Answer: drought


Question 16.
Water vapour gets added to air by ………………… and transpiration.

Answer

Answer: evaporation


Question 17.
The circulation of water between ocean and land is known as the …………………

Answer

Answer: water cycle


Question 18.
………………… covers more than two- thirds of the earth’s surface.

Answer

Answer: Water


Question 19.
In atmosphere, water is present in huge quantities as …………………

Answer

Answer: water vapours


Question 20.
Water present in oceans and seas is ………………… for drinking.

Answer

Answer: unfit


Question 21.
Excess of rain may cause …………………

Answer

Answer: flood


Question 22.
Lack of rainfall for a long period of time causes …………………

Answer

Answer: drought


Question 23.
Dew is found on leaves of grass on ………………… mornings.

Answer

Answer: winter


Question 24.
Water cycle helps in regulating the ………………… on the earth.

Answer

Answer: weather


Question 25.
Tiny drops of water are called ………………… of water.

Answer

Answer: droplets


True or False

Question 1.
Ice is a gaseous form of water.

Answer

Answer: False


Question 2.
Water is also present below the surface of earth.

Answer

Answer: True


Question 3.
The process by which rainwater changes into snow is called condensation.

Answer

Answer: False


Question 4.
Sea water is saline.

Answer

Answer: True


Question 5.
Oceans are the major sources of fresh water.

Answer

Answer: False


Question 6.
Clouds are the mixture of opaque gases.

Answer

Answer: False


Question 7.
All animals and plants contain large amount of water.

Answer

Answer: True


Question 8.
The process of condensation is the reverse of transpiration.

Answer

Answer: True


Question 9.
Condensation near the surface of earth results in fog.

Answer

Answer: True


Question 10.
Lack of rain causes flood.

Answer

Answer: False


Question 11.
Vapourisation takes place only in presence of sunlight.

Answer

Answer: False


Question 12.
In cold countries, people use water to keep their houses warm.

Answer

Answer: True


Question 13.
Deep underground water is generally safe for drinking and cooking.

Answer

Answer: True


Question 14.
The highly salty water of an ocean is converted into pure water in nature by adding chlorine.

Answer

Answer: False


Question 15.
Our body contains 98% water.

Answer

Answer: False


Question 16.
Water evaporates faster on a hot summer day as compared to a cloudy day.

Answer

Answer: True


Question 17.
Excessive rain in an area leads to droughts.

Answer

Answer: False


Question 18.
Water is a natural resource.

Answer

Answer: True


Question 19.
About one-third of the Earth is covered with water.

Answer

Answer: False


Question 20.
Heating is essential to convert water into its vapour.

Answer

Answer: True


Question 21.
About 70% of the earth is covered with fresh water.

Answer

Answer: False


Question 22.
Sea water is saline.

Answer

Answer: True


Question 23.
Water vapour enters the air due to the process of evaporation.

Answer

Answer: True


Question 24.
We should conserve water for future.

Answer

Answer: True


Question 25.
Sunlight is essential to convert water into its vapour.

Answer

Answer: True


Match the following

Column I Column II
1. Ice (a) Due to lack of rain
2. Oceans (b) Due to excess of rain
3. Drought (c) The solid form of water
4. Flood (d) Sources of saline water
5. Purest form of water (e) Present in human beings
6. 70% water (f) Are covered with ice
7. 90% water (g) Rainwater
8. Poles (h) Present in tomatoes
9. Water cycle (i) Formed during winters
10. Dew (j) Continuous movement of water in Earth’s atmosphere
Answer

Answer:

Column I Column II
1. Ice (c) The solid form of water
2. Oceans (d) Sources of saline water
3. Drought (a) Due to lack of rain
4. Flood (b) Due to excess of rain
5. Purest form of water (g) Rainwater
6. 70% water (e) Present in human beings
7. 90% water (h) Present in tomatoes
8. Poles (f) Are covered with ice
9. Water cycle (j) Continuous movement of water in Earth’s atmosphere
10. Dew (i) Formed during winters

Column A Column B
1. Rainwater (a) Hand pump
2. Water cycle (b) Winter morning
3. Groundwater (c) Monsoon season
4. Dew on leaves or grass (d) Water released by plants
5. Transpiration (e) Circulation of water
Answer

Answer:

Column A Column B
1. Rainwater (c) Monsoon season
2. Water cycle (e) Circulation of water
3. Groundwater (a) Hand pump
4. Dew on leaves or grass (b) Winter morning
5. Transpiration (d) Water released by plants

Hope the information shed above regarding NCERT MCQ Questions for Class 6 Science Chapter 14 Water with Answers Pdf free download has been useful to an extent. If you have any other queries of CBSE Class 6 Science Water MCQs Multiple Choice Questions with Answers, feel free to reach us so that we can revert back to us at the earliest possible.