Mention any four activities in your daily life where you use water.
a. Drinking
b. Cooking
C. Bathing
d. Washing
Something to Know
A. Fill in the blanks.
1. Rain and snow are the main sources of water in nature.
2. Rivers flow into a sea or an ocean.
3. India is surrounded by Bay of Bengal on the east side.
4. A dam stores river water which is used to generate electricity.
5. Water in canals is used for irrigating the fields.
B. Write True or False for the following statements.
1. Snow is a natural source of water. True
2. People draw water from a river using a hand pump. True
3. River water is purified for drinking purposes. True
4. India is surrounded by Arabian sea on the west side. True
5. Ground water is used by plants for their growth. True
C. Tick (✔) the correct option.
1. Water, present under the surface of earth, is called-
(a) tap water
(b) ground water (✔)
(c) lake
(d) rain water
Answer – (b) ground water (✔)
2. One of the main rivers of South India is-
(a) Ganga
(c) Cauvery (✔)
(b) Chenab
(d) Beas
Answer – (c) Cauvery (✔)
3. On the southern side, India is surrounded by-
(a) Bay of Bengal
(b) Arabian Sea
(c) Pacific Ocean
(d) Indian Ocean (✔)
Answer – (d) Indian Ocean (✔)
4. It dances in the rain.
(a) peacock (✔)
(b) cat
(c) dog
(d) squirrel
Answer – (a) peacock (✔)
5. Rivers get water mainly from-
(a) lakes and ponds
(b) canals and oceans
(c) rain and snow (✔)
(d) underground and wells
Answer – (c) rain and snow (✔)
D. Answer the following questions in brief.
1. Name two main natural sources of water.
Answer – Two main natural sources of water are snow and rain.
2. Name any three inland water bodies.
Answer – Three inland water bodies are lakes, rivers and ponds.
3. Write one use of water in the canals.
Answer – Water in the canals is used for irrigation the fields.
4. Name two main rivers of North India.
Answer – Two main river of north India are Ganga and Yamuna.
5. State two methods of drawing ground water.
Answer – Two methods of drawing ground water are by well and by hand pumps.
E. Answer the following questions.
1. How is snow a source of water?
Answer – Snow is a source of water because in summers snow melts down and changes into water. This water flows down the mountain into the rivers and lakes.
2. How is a dam useful for generating electricity?
Answer – The stored water in dam is made to fall from a height which results in generation of electricity.
3. Why do plants look greener after rain?
Answer – Rain water washes away the dust and dirt from the leaves of the plant making it look greener and fresh.
4. How is ground water useful?
Answer – Ground water is used by plants for growth and people draw it from wells or by using hand pumps, then they use this water for drinking, cooking, bathing etc.
5. Why are picnic spots often developed around or near lakes?
Answer – Picnic spots are often developed near lakes and rivers because the water present there is used for cooking, boating and other water sports.
Value Based Question
Reyansh was very happy and excited because he was going to visit his father’s ancestral home in a village. After reaching there, he wanted to have a bath. His father took him to the well in the courtyard of the house. Reyansh did not see a tap there and asked his father where to get the water from. His father started drawing water from the well. Reynash watched him for sometime and then, he helped his father to draw water and enjoyed a refreshing bath.
1. What value is displayed by Reyansh?
Answer – Value displayed by Reyensh is helpful in nature.
2. Where do wells get water from?
Answer – Well gets water from underground water.
3. Name another method to draw ground water.
Answer – Another method to draw underground water is by using hand pumps.
4. What difference did Reyansh find in the way people get water in cities and in a village?
Answer – People in city gets water from taps and people in a village get water from wells, handpump and rivers.
Something to Do
1. Draw a picture of a rainy day and colour it.
2. Observe the effect of rain on plants and some animals that you see in your neighbourhood.
Answer – I have observed that rainwater frees essential elements in the soil for plants to grow more faster than any other season. Animal in rainy season interfere with how well animals are able to see, hear and smell, as well as regulate their body temperature.
3. Find out the names of:
(a) Four dams in India.
Answer – Sardar Sarovar Dam in Gujrat on Narmada river.
Nagarjuna Sagar Dam in Telangana on Krishna river.
Hirakud dam in Odisha on Mahanadi river.
Bhakra Nangal Dam in Punjab-Himachal Pradesh Border on Sutlej river.
(b) Six cities in India that are located near rivers.
Answer – Haridwar, Delhi, Kolkata, Varanasi, Patna, Ahmedabad and Lucknow in India, are located on riverbanks.
(c) The five oceans of the world.
Answer – Atlantic Ocean, Pacific Ocean, Indian Ocean, Arctic Ocean and Antarctic Ocean are the five oceans of the world.