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Olympiad Test: Water


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20 Questions MCQ Test Science Class 6 | Olympiad Test: Water

Olympiad Test: Water for Class 6 2023 is part of Science Class 6 preparation. The Olympiad Test: Water questions and answers have been prepared according to the Class 6 exam syllabus.The Olympiad Test: Water MCQs are made for Class 6 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Water below.
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Olympiad Test: Water - Question 1

What is the main source of water for inland lakes?

Detailed Solution for Olympiad Test: Water - Question 1

The inland lakes depend on rains or the water table (ground water).

Olympiad Test: Water - Question 2

Identify the source of ground water.

Detailed Solution for Olympiad Test: Water - Question 2

Rain water is the source of ground water.

Olympiad Test: Water - Question 3

Which of the following are changed when water boils?
(i) Temperature
(ii) State
(iii) Colour

Detailed Solution for Olympiad Test: Water - Question 3

When water boils, there will be a change in its temperature and state.

Olympiad Test: Water - Question 4

Clouds are formed due to

Detailed Solution for Olympiad Test: Water - Question 4

Clouds are formed due to evaporation and condensation.

Olympiad Test: Water - Question 5

Mrs. Uma has put a wet cloth to dry as shown below.

 Which part of the towel will dry faster?

Detailed Solution for Olympiad Test: Water - Question 5

The effect of wind will be more towards the bottom part of the towel as this part is free. Thus, part Z will dry faster than the other parts of the towel.

Olympiad Test: Water - Question 6

In a small town, the number of water pumps, concrete houses and roads increased. What happens to the water table of that place?

Detailed Solution for Olympiad Test: Water - Question 6

The water table of that place becomes lower.

Olympiad Test: Water - Question 7

Cloud seeding is a technique that induces rain. What does the process involve?

Detailed Solution for Olympiad Test: Water - Question 7

Cloud seeding is an artificial method of introducing particles in clouds to cause rains by initiating condensation of water vapour present in the clouds.

Olympiad Test: Water - Question 8

Given in the figure are four containers that contain the same amount of water.

In which of the following containers will water evaporate the slowest?

Detailed Solution for Olympiad Test: Water - Question 8

Container S (a flask) has the smallest surface area of water exposed to the atmosphere. Thus, the rate of evaporation will be the slowest in flask S.

Olympiad Test: Water - Question 9

Which of the following is the primary source of water on land?

Detailed Solution for Olympiad Test: Water - Question 9

Rain water forms the primary source of water on the land.

Olympiad Test: Water - Question 10

Which of the following is potable water?

Detailed Solution for Olympiad Test: Water - Question 10

Water which is fit for drinking is called potable water.

Olympiad Test: Water - Question 11

In early winter mornings, we can see drops of water on the grass. This is because of

Detailed Solution for Olympiad Test: Water - Question 11

Due to the sunrays, the water vapour present in the atmosphere condenses to form dew drops which fall on the blades of grass, leaves of plants etc., during early winter mornings.

Olympiad Test: Water - Question 12

Why is water useful to life on the earth?
(i) It maintains ecological balance.
(ii) It sustains life.
(iii) It is necessary for respiration in aquatic organisms.

Detailed Solution for Olympiad Test: Water - Question 12

Water is useful to life on the earth. To maintain ecological balance, for sustaining life and it is also necessary for respiration in aquatic organisms.

Olympiad Test: Water - Question 13

Which of the following statements is true?

Detailed Solution for Olympiad Test: Water - Question 13

A lot of salt deposits are present in our earth's crust. They are carried by rain water in dissolved form and increase the salinity of seas slowly over the time.

Olympiad Test: Water - Question 14

Rain water harvesting is a method employed to

Detailed Solution for Olympiad Test: Water - Question 14

Rain water is collected in a special type of arrangement. This water is used which in turn helps to raise the water table of a place.

Olympiad Test: Water - Question 15

Ground water gets recharged by the process of

Detailed Solution for Olympiad Test: Water - Question 15

Ground water gets recharged by the process of infiltration.

Olympiad Test: Water - Question 16

A Observe the figure given below and identify the process.

 

Detailed Solution for Olympiad Test: Water - Question 16

The process of water cycle is shown in the given figure.

Olympiad Test: Water - Question 17

Why do you feel cool after you start sweating?

Detailed Solution for Olympiad Test: Water - Question 17

During summer, water, from our body as sweat. Evaporation causes cooling because water droplets present on the skin require some heat to evaporate, which they take from the body.

Olympiad Test: Water - Question 18

What causes the formation of salt from sea water?

Detailed Solution for Olympiad Test: Water - Question 18

Sea water contains a lot of dissolved salts and when the evaporation of the sea water occurs, these salts are left behind.

Olympiad Test: Water - Question 19

Why does the water table of a place become lower?

Detailed Solution for Olympiad Test: Water - Question 19

The water table of a place where droughts prolong for a long period of time becomes lower because of lesser water seeping into the ground.

Olympiad Test: Water - Question 20

Why is water scarcity increasing day by day?

Detailed Solution for Olympiad Test: Water - Question 20

Water is becoming scarce due to over usage and wastage of water due to improper use.

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