· How did an ant know that other ants did not belong to its group?
Each
ant emits a type of scent from its body. By identifying this scent, the ant
knows whether another ant belongs to its group or not. Even that (guardian) ant
He knew by smell that the other ants did not belong to his group.
· How
did the guard ant recognize this ant?
The
guard ant was familiar with the scent of this ant. So the guard ant recognized
this ant by smelling it.
· Have
you seen a dog sniffing? What is he trying to smell? Think that.
Yes,
I have seen the dog sniffing here and there. He tries to smell the urine or
faeces of other dogs, so that by his smell he can know whether other dogs have
come to his territory or not.
· In
what special way do humans use this canine sense of smell?
Humans
use dogs' sense of smell to catch criminals, detect bombs and find lost goods.
· Where
do you find your sense of smell helpful? Write few examples. For example, aroma
makes food better or worse.
This
is how the sense of smell helps us are: (1) If there is a gas leak or leakage
in the kitchen, we can detect it by its smell and turn off the gas to avoid
accidents. (2) If the food cooked on the hearth is burning, further burning of
the food can be prevented by detecting its smell. (3) Stale or spoiled food can
be identified by its smell. (4) If an animal or human being is dead in a closed
room, it may be known by its smell.
· What
do you think about the threat to the survival of tigers in the wild?
Poachers
hunt tigers indiscriminately for their nails, teeth and furry skin. Hence the
survival of the tiger is threatened. Tigers are losing their natural habitat
due to deforestation. So its existence is in danger.
· Where
else are national parks and sanctuaries located in India?
We
have seen that the government has declared some forests as protected areas for
the protection of animals. They include 'Jim Corbett National Park' in
Uttarakhand, 'Ghana' in Bharatpur district in Rajasthan. Gujarat has 'Gir
National Park', 'Kaliar National Park', Marine National Park (Gulf of Kutch)
and 'Vansda National Park'. Apart from this, the following states in India have
national parks and sanctuaries.
Balaram
Sanctuary and Nala Sarovar Bird Sanctuary in Gujarat; Thar Desert in Rajasthan;
Kaziranga in Assam; Bandipur in Karnataka; Dachigam in Jammu and Kashmir and
Kanha in Madhya Pradesh are national parks.
· Collect
its (sanctuary and national park) information and write a report.
First
we will see here about Sanctuaries and National Parks:
Sanctuaries
: Areas protected for the conservation and breeding of wildlife which are
threatened with extinction are called 'sanctuaries'. Sanctuaries are created by
the state government. Pets can be grazed here after obtaining permission from
the authority. Balaram Sanctuary and Nala Sarovar Bird Sanctuary are
sanctuaries in Gujarat.
National
Park: A protected area for preservation of natural flora, wildlife, places of
natural beauty as well as important national sites is called 'National Park'.
It is formed with the cooperation of the State Government and the Central
Government. There is a complete ban on grazing domestic animals. Gir National
Park and Velavadar National Park are famous national parks of Gujarat
· How
do fish give warning?
Fish
give warning through electrical signals.
· How
do people living around forests get information about earthquakes and storms?
Certain
animals behave differently when earthquakes and storms are about to occur. By observing
this behavior of animals, people living around the forest get knowledge about
it.
· What
can animals do with their senses?
Animals
can see, hear, taste, smell and feel through their senses. Many animals can see
their food from great distances. Many animals can hear the smallest sound. Many
animals can find their mates by smell.
· What
is a National Park? explain Write the names of two National Parks of Gujarat.
A
protected area for preservation of natural flora, wildlife, places of natural
beauty and important national sites is called 'National Park'. It is formed
with the cooperation of the State Government and the Central Government. There
is a complete ban on grazing domestic animals. Gir National Park (Sasangir),
Blackbuck National Park (Velavdar), Marine Life National Park (Gulf of Kutch)
and Vansda National Park (Navsari) are the famous national parks of Gujarat.
· Write
a short note on 'Wonderful Senses of Tiger'.
Tigers
have amazing senses. (1) Tigers can see six times better than us at night. (2)
Its whiskers are very sensitive and can sense movement and vibration in the
air. It helps the tiger to move in the dark and find food. (3) A tiger's sense
of hearing is so acute that it can distinguish between the rustling of leaves
and the movement of an animal in the grass. (4) A tiger's ears can move in
different directions. It helps him to hear the sound from all sides. (5) Tigers
can make different sounds for different functions. It roars and can also snort.
(6) A tiger can detect the presence of another tiger in its territory by the
smell of that tiger's urine.
· The
government has made a law that no one can catch or keep a snake. What do you
think about this law? Give reasons for your answer and write in your own words.
The
law made by the government is really correct, proper and in the interest of
animals. According to this law no madari or any other person can catch or keep
any snake or any wild animal. This law is for wild animals like tiger, lion,
leopard, bear, elephant. This law does not apply to domestic animals like cows,
buffaloes, oxen, horses, donkeys, camels and goats.
· Madari
people have found it difficult to earn their living. explain
In
earlier times Madari used to keep snakes and get money and grains by showing
snake tricks to people, but now the government has made a law not to catch or
keep wild animals. Due to this law, Madari cannot keep snakes and show snake
tricks. This has made it difficult for them to make a living.
· For
Madari, the snake is his treasure. Explain this statement.
Snakes
are a source of livelihood for Madari. Madari considers snakes as an important
part of life. He never killed snakes or sold their skins. They give a snake as
a gift in daughter's marriage. Their 'Kalbelia' dance also has snake-like
movements. Thus, snakes are important in their practice as well. Hence it can
be said that the snake is an integral part of their life, their treasure.
· What
law has the government made regarding wild animals? Why?
The
government has made a law not to catch or keep wild animals. Some people used
to kill wild animals and sell their skins, nails, horns and other parts at high
prices. Hence the government has made such a law to protect the wild animals.
· Has
anyone asked you to cover your nose with your hand before taking medicine? Why
did they ask you to do this?
Yes,
I brought medicine from the hospital last month as I was ill. My mom told me to
close my nose before giving medicine. I covered my nose with my hand so mom
gave the medicine in my mouth and it went down easily in my stomach. Often we
do not feel the medicine due to the smell of the medicine and there is a fear
of vomiting. Hence the smell is not detected by keeping the nose closed and the
medicine can be taken without spoiling the mouth.
· How
do you feel when you are very hungry? How do you explain that?
When
we feel very hungry, our mind becomes restless. Headaches and anger also
occurs.
-When we are
very hungry, we sometimes jokingly say, “I am so hungry that I will eat
everything!”
- Often when we
feel very hungry we say the cats in my stomach are talking. I have a pit in my
stomach.
· Have
you heard or seen the word 'glucose' written anywhere? where?
Yes,
I have heard the word 'glucose'. Also, the word glucose is seen written on the
packet of glucose powder. I have also heard and seen the word glucose in
advertisements on TV. Heard the word glucose from the mouth of the doctor
saying that a sick patient in the hospital needs to be given a glucose bottle
and saw the word glucose written on the bottle.
· have
you ever tasted glucose in a first aid box? How does it taste? Tell your
friend.
Yes,
I have tasted the glucose in the first aid box. Its taste is sweet like sugar.
I told this to my friend.
· Have
you or anyone in your family been given a glucose bottle? When and why? Tell
the class about it.
Yes,
in my house when my grandfather was sick, he was given glucose from a glucose
bottle in the hospital. Dadaji was very weak due to illness. So the doctor gave
him glucose. By giving glucose, Dadaji got strength, his physical weakness was
removed and he seemed to be in good spirits. I said this in my class.