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158
Web of Life
2 2
2 2 2
By now, you must have read almost the complete book. You
have read about trees, water, houses, animals, vehicles and many
other things. You must have thought about them as well. Can you
tell, why did we try to know and think about all these things?
Water
Plants
Grass
Snake
Sun
Squirrel
2019-20
© NCERT 
not to be republished
Page 2


158
Web of Life
2 2
2 2 2
By now, you must have read almost the complete book. You
have read about trees, water, houses, animals, vehicles and many
other things. You must have thought about them as well. Can you
tell, why did we try to know and think about all these things?
Water
Plants
Grass
Snake
Sun
Squirrel
2019-20
© NCERT 
not to be republished
159
How are we linked to the things shown in the picture?
Come, let us find out –
i First of all, draw your picture in the blank space.
House
Moon
Bird
Soil
Rat
Air
Cow
2019-20
© NCERT 
not to be republished
Page 3


158
Web of Life
2 2
2 2 2
By now, you must have read almost the complete book. You
have read about trees, water, houses, animals, vehicles and many
other things. You must have thought about them as well. Can you
tell, why did we try to know and think about all these things?
Water
Plants
Grass
Snake
Sun
Squirrel
2019-20
© NCERT 
not to be republished
159
How are we linked to the things shown in the picture?
Come, let us find out –
i First of all, draw your picture in the blank space.
House
Moon
Bird
Soil
Rat
Air
Cow
2019-20
© NCERT 
not to be republished
160
i Now, join your picture with lines to all those things
which you feel are needed for you to live.
i Have you joined your picture to the house?
i Let's see, with what other things can we join the
house to. Think – What is a house made of?
The web made by the children will help them appreciate the
interdependence of things in the environment. A discussion on this
subject in the class will help them in making the web.
Share your web with your friends. Also, have a look at
the web made by your friends.
Are they all alike?
Discuss with your friends.
© Wood – Which comes from trees.
© Bricks – Which are made from water and clay.
© Clay – We get from the soil, and
© Water – we get it from rivers, ponds, wells or rain.
It must be clear to you with which pictures or words you
need to join the house.
In the same way, join all the things with other things related
to them. While doing so, you might need to write the names of a
few more things.
What have you finally got? A big web! Isn’t it?
What can you understand from this web?
2019-20
© NCERT 
not to be republished
Page 4


158
Web of Life
2 2
2 2 2
By now, you must have read almost the complete book. You
have read about trees, water, houses, animals, vehicles and many
other things. You must have thought about them as well. Can you
tell, why did we try to know and think about all these things?
Water
Plants
Grass
Snake
Sun
Squirrel
2019-20
© NCERT 
not to be republished
159
How are we linked to the things shown in the picture?
Come, let us find out –
i First of all, draw your picture in the blank space.
House
Moon
Bird
Soil
Rat
Air
Cow
2019-20
© NCERT 
not to be republished
160
i Now, join your picture with lines to all those things
which you feel are needed for you to live.
i Have you joined your picture to the house?
i Let's see, with what other things can we join the
house to. Think – What is a house made of?
The web made by the children will help them appreciate the
interdependence of things in the environment. A discussion on this
subject in the class will help them in making the web.
Share your web with your friends. Also, have a look at
the web made by your friends.
Are they all alike?
Discuss with your friends.
© Wood – Which comes from trees.
© Bricks – Which are made from water and clay.
© Clay – We get from the soil, and
© Water – we get it from rivers, ponds, wells or rain.
It must be clear to you with which pictures or words you
need to join the house.
In the same way, join all the things with other things related
to them. While doing so, you might need to write the names of a
few more things.
What have you finally got? A big web! Isn’t it?
What can you understand from this web?
2019-20
© NCERT 
not to be republished
Notes
2019-20
© NCERT 
not to be republished
Page 5


158
Web of Life
2 2
2 2 2
By now, you must have read almost the complete book. You
have read about trees, water, houses, animals, vehicles and many
other things. You must have thought about them as well. Can you
tell, why did we try to know and think about all these things?
Water
Plants
Grass
Snake
Sun
Squirrel
2019-20
© NCERT 
not to be republished
159
How are we linked to the things shown in the picture?
Come, let us find out –
i First of all, draw your picture in the blank space.
House
Moon
Bird
Soil
Rat
Air
Cow
2019-20
© NCERT 
not to be republished
160
i Now, join your picture with lines to all those things
which you feel are needed for you to live.
i Have you joined your picture to the house?
i Let's see, with what other things can we join the
house to. Think – What is a house made of?
The web made by the children will help them appreciate the
interdependence of things in the environment. A discussion on this
subject in the class will help them in making the web.
Share your web with your friends. Also, have a look at
the web made by your friends.
Are they all alike?
Discuss with your friends.
© Wood – Which comes from trees.
© Bricks – Which are made from water and clay.
© Clay – We get from the soil, and
© Water – we get it from rivers, ponds, wells or rain.
It must be clear to you with which pictures or words you
need to join the house.
In the same way, join all the things with other things related
to them. While doing so, you might need to write the names of a
few more things.
What have you finally got? A big web! Isn’t it?
What can you understand from this web?
2019-20
© NCERT 
not to be republished
Notes
2019-20
© NCERT 
not to be republished
Notes
2019-20
© NCERT 
not to be republished
Read More
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FAQs on NCERT Textbook - Web Of Life - EVS for Class 3

1. What is the importance of biodiversity in the web of life?
Ans. Biodiversity is essential in the web of life as it supports the stability and functioning of ecosystems. It ensures the availability of various resources such as food, water, and medicine. Additionally, biodiversity also plays a crucial role in maintaining ecological balance, regulating climate, and providing habitats for numerous species.
2. How does the loss of a single species impact the web of life?
Ans. The loss of a single species can have far-reaching consequences on the web of life. Each species is interconnected and dependent on others for survival. When a species goes extinct, it disrupts the balance and functioning of the ecosystem. It can lead to the decline of other species that relied on the extinct species for food or other ecological interactions, ultimately affecting the entire web of life.
3. What are the major threats to biodiversity?
Ans. Several factors pose significant threats to biodiversity. Habitat destruction and fragmentation, pollution, climate change, invasive species, and overexploitation of natural resources are some of the major threats. These factors can lead to the loss of habitats, alteration of ecosystems, and ultimately result in the decline of species diversity.
4. How does biodiversity contribute to human well-being?
Ans. Biodiversity is crucial for human well-being in various ways. It provides us with essential ecosystem services such as clean air and water, regulation of climate, pollination of crops, and natural resources for livelihoods. Biodiversity also offers recreational and cultural values, improving the quality of life for individuals and communities.
5. What can individuals do to conserve biodiversity?
Ans. Individuals can contribute to biodiversity conservation through simple actions. These include practicing sustainable consumption, reducing waste, supporting local conservation initiatives, planting native species, and participating in awareness programs. By making conscious choices and advocating for biodiversity conservation, individuals can actively contribute to protecting the web of life.
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