Water Cycle

Q.

What are the factors that affect the weather?

Q.

Question 5:

(i) Write any five examples of evaporation that are taking place in our daily life?

(ii) What is Sublimation? Explain with suitable examples.

Q. What is drought? When does drought occur?

Q.

How do we dry our clothes? Where does the water go? Name the process. [3 MARKS]

Q.

Water vapor condenses to form tiny droplets of water in the upper layers of air where it is cooler.

1. True
2. False

Q.

Question 3 (a)

Which of the following statement is “true”?
Water vapour is present in air only during the monsoon.

Q.

Define the following terms with one example:

1. Evaporation

2. Condensation

Q. We feel uncomfortable on a hot sunny day in the beach
.Why?

Q.

Question 19

Most of the water that falls on the land as rain and snow sooner or later goes back to a sea or an ocean. Explain how it happens.

Q. Evaporation and condensation are involved during cloud formation.

1. True
2. False

Q. Write whether the following statements are true or false.

(a) Only water can exist in three different states.

1. False
2. True

Q. Total amount of water on earth is roughly the same.

1. True
2. False

Q.

State true or false.
During water cycle, water exists only in one form.

1. True

2. False

Q.

Question 18

Water, as .... goes into the atmosphere by the process of .... and .... and it forms ......, which on condensation falls in the form of ...and ...

Q.

What are the three forms of water? Explain how they are interchangeable?

Q.

Here are some false statements. Identify the mistakes and rewrite them correctly. (a) Multiplying urban centers with large and dense populations and urban lifestyles have helped in the proper utilization of water resources. (b) Regulating and damming rivers does not affect the river’s natural flow and sediment flow. (c) In Gujarat, the Sabarmati basin farmers were not agitated when higher priority was given to water supply in urban areas, particularly during droughts. (d) Today in Rajasthan, the practice of rooftop rainwater water harvesting has gained popularity despite high water availability due to the Indira Gandhi Canal.

Q. ___ is a process by which plants lose water.

Q.

Question 20

Draw a diagram to show how seawater reaches a lake or pond?

Q.

Question 7

How are clouds formed?

Q. The particles of water move faster in:

1. 
2. 
3. 
4. Particles of water does not move

Q.

Water availability per person in India is declining. State whether the given statement is true or false. If true, give the reasons.

Q. Humidity is the amount of water vapour present in the atmosphere.

1. True
2. False

Q. Water released from clouds in the form of rain, snow, or hail is called

1. condensation
2. perspiration
3. evaporation
4. precipitation

Q.

Explain the various processes involved in water cycle. [5 MARKS]

Q. The amount of water vapour in air is relatively highest in the _____ season.

1. rainy
2. dry
3. summer
4. autumn

Q. Name the elements which form water. State three characteristics of water to justify that it is a compound.

Q.

Water, as ______ goes into atmosphere by the processes of _____ and _____ and forms ____, which on condensation fall in the form of ____ and _____.

Q.

Oceans are the main source of water.

1. True
2. False

Q.

Question 11

Can we reverse the following changes? If yes, suggest the name of the method.
Water into water vapour
Water vapour into water
Ice into water
Curd into milk

Q.

Question 5:

(i) Write any five examples of evaporation that are taking place in our daily life?

(ii) What is Sublimation? Explain with suitable examples.