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NCERT Solutions for Class 4 EVS Chapter 18: Too Much Water, Too Little Water

NCERT solutions for class 4 EVS Chapter 18 have been composed by subject experts. All the solutions are provided with simple explanation for easy understanding of concepts.

Aug 22, 2019 16:37 IST
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NCERT Solutions for Class 4 EVS Chapter 18: Too Much Water, Too Little Water
NCERT Solutions for Class 4 EVS Chapter 18: Too Much Water, Too Little Water

NCERT Solutions for Class 4 EVS Chapter 18 - Too Much Water, Too Little Water have been designed in a way to instil observational skills in students. This will help them understand all the concepts and become efficient enough to answer other problems in EVS, based on their views and experience. We have devised detailed answers for all questions given in NCERT Class 4 EVS Chapter 18. We have also collated all these NCERT solutions in form of PDF which will make it easy for students to download these solutions and use them whenever required.

NCERT Solutions for Class 4 EVS

Chapter 18 - Too Much Water, Too Little Water

NCERT Page No. 147

Discuss

(a) How can unclean or dirty water harm our body?

(b) Have you ever got dirty or unclean water in your area? What was the reason for this?

(c) Do you know anyone who has fallen sick because of such water? Talk about this.

(d) When the guest came to Suguna’s house, they offered him a cold drink, because they thought he should not drink such water. What do you think Suguna’s family must be doing for their own drinking water?

(e) The guest said he did not take cold drinks. Why do you think he said this?

Answer.

(a) Unclean and dirty water contains many harmful chemicals and micro-organisms which can cause various diseases to us.

(b) Yes, we often get dirty water in our taps due the pipeline leakage.

(c) Yes, my little brother had fallen sick because of drinking unclean water.

(d) They must be cleaning the water either by boiling it or by adding chlorine tablets or alum to it.

(e) Cold drinks are carbonated drinks which are not good for health. Due to this reason the guest would have denied the cold drinks.

NCERT Page No. 148

Read and Write

(a) Have you ever faced a shortage of water in your house? When?

(b) What did you do then?

Answer.

(a) We often face shortage of water in summers.

(b) We have to purchase water from private water tanks.

NCERT Page No. 149

(a) Have you ever played in water? Where and when?

(b) Are there times when you are not allowed to play in water? What are the reasons for this?

(c) Have you seen wastage of water in your area? Discuss.

(d) The water park had a lot of water to play in, but the nearby village did not have water even to drink. Discuss.

(e) If you go to a water park, find out from where the water comes to the park.

Answer.

(a) Yes I have played in water when we visited a water park in last summers.

(b) Some of the reasons why we are not allowed to play with water are:

  • Water is dirty
  • Water is deep
  • Our health is not well

(c) Yes, I have seen the tanks overflowing with water in my neighbourhood. Some people also let the taps open to water their gardens due to which a lot of water gets wasted.

(d) The water park might be taking the water from the water bodies of the nearby village or they might be drawing the groundwater to fill up their pools. Due to this the nearby village did not have water even to drink.

(e) Water comes to the park through water pipeline.

NCERT Page No. 150

Write in your notebook

(a) Why was Raziya worried when she read the newspaper?

(b) Raziya asked that all the water that was filled the previous day should be thrown. Could this water have been used for something else? What kind of things?

(c) In what way did she plan to clean the water?

(d) Do you know of different ways to clean the water? Describe them.

(e) Suppose, Raziya had not read the news and everyone had drunk the water without boiling it, what could have happened?

Answer.

(a) Raziya was worried when she read in the newspaper that the sewage water has got mixed with the water in the drinking water pipes. So, they would get dirty water in their area.

(b) Yes, tis water could have been used for washing clothes, cleaning the toilet and watering the plants.

(c) She planned to clean the water by boiling it.

(d) Yes, I know some different ways to clean water. These are given below:

  • By boiling the water
  • By adding alum to water
  • By adding chlorine to water
  • By filtering water using water purifiers

(e) People could have suffered from water-borne diseases like diarrhoea, cholera, typhoid, etc., if they had consumed the contaminated water.

Discuss

(a) Where Deepak lives, everyone has to stand in a queue to fill water from the common public tap. In Raziya’s house, water comes all day in the tap. Why is this?

(b) Raziya read news about the water in the newspaper. Have you read any news about water in the newspapers? What kind of news?

Answer.

(a) Deepak’s family lives in a slum where they have a common tap for all families living in that area. Also water in this tap comes only once or twice a day. Due to this, people have to stand in a queue to collect water. On the other hand, Raziya lives in a high-society building where people get water all the day from overhead tanks.

(b) Yes I have read different news about water in newspapers. These were regarding shortage of drinking water, pollution of water in rivers and other water bodies.

NCERT Page No. 153

Observe and Note –

(a) Put a (Right) in right box or boxes

(i) Where does the water in your school come from?

(ii) In your school, from where do you take water to drink?

(b) If there is no tap, matka or handpump, then how do you get drinking water?

(c) Is there water in all the taps or handpumps?

(d) Is there any tap which is leaking or dripping?

(e) Are all the matkas filled with water and are they covered?

(f) Are the matkas and other water containers cleaned regularly?

(g) How is water made safe for drinking?

(h) Is there a long-handled ladle to take water from the matka or container? How many ladles are there?

(i) Is the place around the drinking water taps or container and matkas cleaned regularly?

Answer.

(a) (i) Water in our school come from tap and tank.

(ii) In our school, we take water to drink from tap.

(b) We get it from water tanker.

(c) Yes, there is water in all the taps and handpumps.

(d) Yes, some if the tap are leaking.

(e) Yes, all the matkas are filled with water and are covered with lids.

(f) Yes, they are cleaned regularly.

(g) Water is made safe for drinking by using the electric water filters.

(h) Yes, there is one ladle for each matka.

(i) Yes, the place around the water taps, containers and matkas is cleaned regularly.

Think and Discuss

(a) Why do the drinking water places get dirty?

(b) What can we do to keep these places clean?

Answer.

(a) Drinking water places get dirty due to dumping garbage, spitting, bathing animals and washing clothes and utensils.

(b) Drinking water places can be kept clean by following ways: 

  • People should avoid throwing waste into the water bodies.
  • People should avoid washing and bathing in river water.
  • Sewage water and Industrial waste should be treated before throwing into rivers.

Find out and write in your notebook

(a) How often (once a day, once in two days, etc.) are the containers or matkas and ladles cleaned? Who cleans them?

(b) How many children are there in your school? How many taps, matkas or handpumps are there? Are these sufficient for children?

(c) Who cleans the places near the water?

(d) Where does the water that is spilt go?

Answer.

(a) All the containers, matkas and ladles are cleaned once in a day. A peon cleans them.

(b) There are 700 children in my school. There are 30 taps for drinking water. These taps are sufficient for children.

(c) A sweeper cleans the places near the water.

(d) Water that is spilt goes into the drains.

NCERT Page No. 153 – 154

Observe and Note

(a) Put a (Right) in right box or boxes

(i) What are the toilet arrangements in your school?

(b)How many toilets are there?

(c) Are there separate toilets for girls and boys?

Answer.

(a) We have toilets built in our school.

(b) There are 20 toilets.

(i) Yes, there are separate toilets for boys and girls.

(ii) Yes, there is water in all the toilets.

(iii) Water comes from taps.

(iv) Yes, there is water for washing hands near the toilet.

(v) Yes, we always wash our hands after using the toilet.

(vi) Yes, there are some taps which are leaking.

(vii) Yes, the toilets are kept clean.

Find Out and Write

(a)  How many boys and girls are there in your school?

(b) How many toilets are there for girls, and how many for boys?

(c) If there are no taps, who brings the water for the toilet? From where does the water have to be brought?

(d) Who keeps the place clean?

Answer.

(a) In our school:

Number of girls = 345

Number of boys = 355

(b) In our school number of toilets:

For girls = 10

For Boys = 10

(c) If there are no taps, peons bring water for the toilet from the containers.

(d) Peons keep the place clean.

NCERT Page No. 155

Talk about it

(a) What can be done to keep the toilets clean?

(b) What can each of us do for this?

(c) Have you seen toilets at bus stands or railway stations? How are they different from the toilets at home?

Answer.

(a) Toilets can be kept clean by regularly cleaning and flushing the toilet after every visit.

(b) We should avoid spreading water and dirt in the toilet. We should flush the toilet after every visit.

(c) Yes, I have seen toilets at bus stands or railway stations. They are very dirty and unhygienic as compared to the toilets at home.

Students may also download all the NCERT solutions for Class 4 EVS chapter 18in PDF format so that they may get access to these solutions in offline mode. Link to download the solutions is given below:

Download CBSE Class 4 EVS NCERT Solutions for Chapter 17

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