Class 6 Science Chapter 14 MCQ

Class 6 Science Chapter 14 MCQ (Multiple Choice Questions) of Water. Learn here the important questions from chapter 14 class 6th Science for the preparation of academic session 2021-2022 exams.

All the questions are answered with complete explanation. These objective questions with multiple answers will help you in preparing the concepts of the chapter Water of standard 6 Science.

Class 6 Science Chapter 14 MCQ Online Test for 2021-2022

Class: 6Science
Chapter: 14Water
Contents: MCQ with Answers and Explanation

Class 6 Science Chapter 14 MCQ Test with Answers


Transpiration is a process in which plants:

[A]. Receive water from soil
[B]. Absorb water vapour from air
[C]. Prepare food from water
[D]. Release water in the form of water vapour

When we step out from an air-conditioned car on a humid day, our spectacles become misty and we cannot see anything clearly. This happens due to a process known as

[A]. Decantation
[B]. Evaporation
[C]. Precipitation
[D]. Condensation

Which of the following statement is or are correct?

[A]. Water is used to generate electricity.
[B]. Water is used to keep things cool.
[C]. Water is used in industries for producing almost all the things that we use.
[D]. All the above

In which of the following case, evaporation of water will be slowest?

[A]. A tray of water kept in sunlight
[B]. A kettle of water kept on burner
[C]. A glass of water kept in a room
[D]. A bucket of water kept on rooftop

The process of condensation is the reverse of:

[A]. Evaporation
[B]. Transpiration
[C]. Freezing
[D]. Sublimation


Raman is doing his homework which is given by his teacher. Would you help him to choose the incorrect sentences?

[A]. Rainwater is the purest form of natural water.
[B]. The place where underground water comes out on the surface of earth on its own is called a spring.
[C]. More than one-thirds of the earth is covered with water.
[D]. The largest source of water on the earth our oceans.

The highest salty water of an ocean, is converted into pure water in nature by:

[A]. Boiling
[B]. Adding chlorine
[C]. Water cycle
[D]. Water works

In which of the following activities, will you use minimum amount of water?

[A]. Bathing
[B]. Brushing teeth
[C]. Washing clothes
[D]. Mopping room

Pooja is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Pooja wants to take help from you:

[A]. Being highly saline or salty ocean water of seawater is not fit for drinking.
[B]. Ocean, play an important role in supplying the fresh water which we use.
[C]. Water vapour in air is the water in semi-solid state.
[D]. Water can exist in three states solid, liquid and gas.

Raju appeared in class test but he confused to know the incorrect statement. Would you help him to know that?

[A]. When water vapour is cooled, it condenses and changes into liquid water.
[B]. When water is heated, it evaporates and changes into water vapour.
[C]. When water is cooled too much, it freezes and changes into ice.
[D]. None of the above


‘Catch water where it falls’ is the basic idea behind

[A]. Recycling of water
[B]. Making dams to store water
[C]. Rainwater harvesting
[D]. Condensation of water vapour

Four handkerchiefs of the same size and material are washed and then hung in four different places. Which of these handkerchiefs will take the shortest time to dry?

[A]. Under the sun.
[B]. In the balcony.
[C]. In the bathroom.
[D]. Under a tree.

In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?

[A]. The loss of water from plants as water vapour through the pores of their leaves is called transpiration.
[B]. Water vapour gets added to the air or atmosphere by the process of evaporation and transpiration.
[C]. The changing of water vapour into liquid water on cooling, is called condensation.
[D]. None of the above

Ruchi is writing some sentences about advantages of rainwater. Choose the correct option(s).

[A]. Rains bring relief by cooling the environment after hot summer days.
[B]. Rains provide water in the river and dams of hydroelectric power plants.
[C]. The showing of many crops depends on the coming of rains during monsoon.
[D]. All the above

Clouds are

[A]. Tiny drops of water floating in air
[B]. Mixture of dust and water vapour
[C]. Particles of water vapour
[D]. Rain drops in air


Which of the following statements is not true about your evaporation of water?

[A]. Water evaporates at any temperature
[B]. Water evaporates only in the day when sun shines
[C]. Water evaporates faster when there is wind
[D]. Water evaporates most rapidly at 100 degree Celsius

Wells are fed by

[A]. Pond water
[B]. Lake water
[C]. Rain water
[D]. Ground water

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 river 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 the sunlight.

Plants regulate their temperature by:

[A]. Transpiration
[B]. Respiration
[C]. Photosynthesis
[D]. Perspiration

The process by which rain water changes into snow is called:

[A]. Melting
[B]. Evaporation
[C]. Freezing
[D]. Condensation


Which of the following are due to condensation?

[A]. Water drops appear on the outer surface of a glass containing ice-cold water and steam arising from wet clothes while they are ironed.
[B]. Steam arising from wet clothes while they are ironed and blackboard dries up after wiping with a wet cloth.
[C]. Water drops appear on the outer surface of a glass containing ice-cold water and fog appearing on a cold winter morning.
[D]. Blackboard dries up after wiping with a wet cloth and fog appearing on a cold winter morning.

In which of the following does condensation of water vapour take place?

[A]. Breathing on to a mirror and heating and open beaker of water.
[B]. Heating and open beaker of water and leaving a glass of ice on the table.
[C]. Breathing on to a mirror and leaving a glass of ice on the table.
[D]. Leaving a glass of ice on the table and leaving a cup of water by the window.

Which of the following is a purest form of natural water?

[A]. Well water
[B]. Spring water
[C]. Rain water
[D]. River water

Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?

[A]. Heavy rains disrupt the traffic and inconvenience to people of the city
[B]. Heavy rains or excessive rains may cause floods.
[C]. Heavy rains also killed the animal living on the land areas and spoiled cultivation.
[D]. All the above.

In a science quiz competition, Nitu asked to choose the statement which was/were correct?

[A]. The continuous circulation of water from the earth’s surface to atmosphere and from the atmosphere back to earth, is called water cycle in nature.
[B]. The water available for our use is very limited and it is decreasing day by day due to over-usage.
[C]. The activity of collecting rainwater directly and store it in big thanks for later use, called rainwater harvesting.
[D]. All the above.

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There are total of 100 MCQ questions covering the entire chapter 14 of class 6 science. These questions provide a perfect preparation for the exams. Just go through the chapter and once or twice practice these questions to be confident in all concepts of the chapter 14 water of standard vi.