A Journey through States of Water Class 6 Worksheet Science Chapter 8

Class 6 Science Chapter 8 Worksheet A Journey through States of Water

A Journey through States of Water Class 6 Worksheet

A. Tick (✓) the odd one out giving a reason. (Conceptual Learning)

Question 1.
Ice, Steam, Water vapor, Milk, Water.
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Question 2.
Humidity, Wind speed, Condensation, Surface area, Temperature.
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Question 3.
Fixed shape, Fixed volume, Glacier, Water vapor, Ice.
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Question 4.
Stone, Wax, Wood, Metal, Alcohol, Plastic.
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Question 5.
Rain, Cloud, Evaporation, Mercury, Condensation.
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B. Multiple Choice Questions

Question 1.
The conversion of water into its vapors is
(a) evaporation
(b) condensation
(c) sublimation
(d) transpiration

Question 2.
Reason for the formation of the droplets of water on the outer surface of the ice-cold water glass is
(a) water seeped out from the glass
(b) evaporation of atmospheric water vapour
(c) condensation of atmospheric water vapour
(d) evaporation of water from the glass

Question 3.
Ayushi accidently dissolves a little amount of sugar in a tumbler half filled with water. Which method would you use to get the sugar back from the solution?
(a) Decantation
(b) Evaporation
(c) Sedimentation
(d) Condensation

Question 4.
In water cycle, the process by which water vapour in the air cools and changes into liquid droplets?
(a) Evaporation
(b) Condensation
(c) Transpiration
(d) Infiltration

Question 5.
One of the best examples of condensation in everyday life is:
(a) sweating
(b) breathing onto a cold window
(c) taking a hot shower
(d) boiling water

C. Assertion – Reason (Critical Thinking)

Two statements are given for questions 1 to 6: Assertion (A) and Reason (R). Select the correct answer to these questions from the codes (a), (b), (c), and (d) as given below:
(a) Assertion (A) and Reason (R) both are correct statements and reason is the correct explanation for assertion.
(b) Assertion (A) and Reason (R) both are correct statements and reason is not the correct explanation for assertion.
(c) Assertion (A) is a correct statement but the Reason (R) is a wrong statement.
(d) Assertion (A) is a wrong statement but the Reason (R) is a correct statement.

Question 1.
Assertion (A): Ice does not flow while water flows.
Reason (R): Ice and water are made up of the same substance.
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Question 2.
Assertion (A): Water is found in three different states—solid, liquid, and gas.
Reason (R): The composition of water in all three states is the same.
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Question 3.
Assertion (A): The use of earthen pots is a traditional method of keeping water cool.
Reason (R): Earthen pots allow water to seep out and cause cooling through the process of evaporation.
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Question 4.
Assertion (A): Clothes dry faster on a rainy day.
Reason (R): High humidity during a rainy day, slows down the rate of evaporation.
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Question 5.
Assertion (A): Water vapour is lighter than air, which causes it to rise.
Reason (R): Condensation is the process of converting vapor into a liquid state.
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Question 6.
Assertion (A): The water cycle is the natural circulation of water between the surface of the earth and the atmosphere.
Reason (R): Water tends to change its state on heating or cooling.
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D. Very Short Answer Questions

Question 1.
Match Column I with Column II (One option of I can match with more than one option of II).

(a) ___________________________________________________

(b) ___________________________________________________

(c) ___________________________________________________

(d) ___________________________________________________

(e) ___________________________________________________

Question 2.
Write one point of difference between ice and water.
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Question 3.
Define state in the context of water.
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Question 4.
What is the reason for the disappearance of water from the puddles?
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Question 5.
Define water vapour.
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Question 6.
Where does the water go after sprinkling it on a hot pan?
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Question 7.
Define evaporation.
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Question 8.
Write two examples of evaporation.
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Question 9.
Define Condensation.
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Question 10.
What is the use of AWG?
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Question 11.
What is the principle behind atmospheric water generator (AWG) machines?
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Question 12.
Name two factors on which the rate of evaporation depends.
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Question 13.
How is the humidity and evaporation rate related to each other?
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Question 14.
What is the scientific principle behind the use of earthen pots made of sand and clay during the summers?
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Question 15.
Name the phenomena responsible for the disappearance of hand sanitizer as we mb it on our hands.
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E. Short Answer Questions

Question 1.
Write two characteristic properties shown by water but not by ice.
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Question 2.
How is steam visible to the human eye?
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Question 3.
How are clouds formed?
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Question 4.
What is the source of the appearance of tiny water droplets on the outer surface of a glass tumbler containing cold water and ice cubes?
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Question 5.
State one difference between evaporation and condensation with an example.
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Question 6.
Write two characteristic properties of
(a) Ice
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(b) Water
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(c) Water Vapour
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Question 7.
What is the importance of the water cycle in nature?
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F. Higher Order Thinking Skills (HOTS) (Critical Thinking)

Question 1.
To clean the spectacles, people often breathe out on glasses to make them wet. What is the reason of glasses becoming wet?
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Question 2.
What allows the aroma of cooking food to travel from a distance to us?
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Question 3.
Why do clothes tend to dry faster on a sunny and windy day?
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Question 4.
Why do clothes dry slowly on a rainy day?
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Question 5.
How do earthen pots made of sand and clay keep water cool during the summer months?
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Question 6.
Why does the space around green natural grass feel cooler than the space around green plastic grass?
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G. Competency/Case-Based Questions (CBQs)

The following questions are case-based. Read the case carefully and answer the questions that follow.

Water, nature’s precious treasure, is a vital component of our ecosystem. As the global population grows, the demand for potable water increases, putting pressure on this finite resource. In India, the water cycle plays a crucial role in replenishing water sources, with the rainy season bringing much-needed relief ‘ to the country’s agricultural lands and inhabitants. The monsoon season, which typically lasts from June to September, is a display of the water cycle’s power, as it brings life-giving water to the region, rejuvenating the environment and supporting the country’s rich biodiversity. But, with increasing urbanization and industrialization, the demand for portable water is skyrocketing, highlighting the need for sustainable management and conservation of this precious resource to ensure its availability for future generations.

Question 1.
Predict the phenomena that are shown in the figure.

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Question 2.
How do the above phenomena help to maintain most of the life and ecosystems on the planet?
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Question 3.
Write all the terms related to ‘A’, ‘B’, ‘C’, and ‘D’ marked in the figure.
A = ___________________________________________________
B = ___________________________________________________
C = ___________________________________________________
D = ___________________________________________________

Question 4.
How is condensation significant in the process of bringing evaporated water back to the Earth’s surface?
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Curiosity Class 6 Worksheet

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