CBSE Notes Class 4 EVS Chapter 18 - Too Much Water Too Little Water - 2026-27

Summary of Too much Water Too Little Water

• This chapter aims to the real-life problems regarding water.

• We all know the world has 72% water, but still, a small amount of water is fit to drink.

• Contamination of water with diseases stays a common problem in urban areas due to the low maintenance of pipelines.

• Clean water is very essential for having a healthy life.

What to Drink?

• A story from Nallamada, Andhra Pradesh shows that a family cannot give water to their guest as the water was contaminated and unhealthy to drink.

• The family has no choice so they have to drink that contaminated water only.

• These issues stay common in some areas because the administration doesn’t give attention to water treatment.

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Water Games

• Let’s move towards the west, Bazar Gaon, Mumbai, there is a water park.

• Children enjoy different kinds of water rides in it.

• Every ride there is with water.

• The water park had different kinds of water fountains.

• Whereas, in the neighbour normal people don’t have water to drink or use in their respective well and taps.

• A tanker is supplied to the locals for the water that too was irregular on its duty.

• So, we can see the irony that people are suffering for water to drink and at the same place people are enjoying and playing in the water.

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Can We Drink This?

• In Mumbai, the high-rise buildings are just situated near the slums.

• A news broke out that the gutter pipeline got mixed with the drinking water pipeline.

• This created a mess, children in the slums get affected by diseases like diarrhoea.

Diseases because of Contaminated Water

• Diseases like cholera, diarrhoea, dysentery, hepatitis A, typhoid, and polio have been linked to contaminated water and poor sanitation.

• Cholera: Cholera is a bacterial infection spread by drinking contaminated water. Cholera causes dehydration and severe diarrhoea.

• Diarrhoea: Diarrhoea is characterized by the passing of loose, watery, and unformed faeces regularly. Acute diarrhoea is characterized by the occurrence of three or more loose stools per day in a period of fewer than 14 days.

Precautions when getting affected by Contaminated Water

• Our bodies lose a lot of water when we have diarrhoea and vomiting.

• It is critical that we replace the water we lose from our bodies.

• When this happens, we should drink a lot of water. In the water, we should also add some salt and sugar.

• When a person has diarrhoea and vomiting, they must drink water slowly.

• It is necessary to consume light foods.

• If the diarrhoea persists, consult a doctor.

• It is critical to seek the advice of a physician.

• Oral rehydration therapy (ORT) is a type of fluid replacement that is used to prevent and treat dehydration, particularly that caused by diarrhoea. It entails drinking water laced with sugar and salts, particularly sodium and potassium.

Practice Questions

Q1. Fill in the Blanks

• If we drink ............... water we may fall sick of diarrhoea. vomiting etc.

Ans: Contaminated

• The ORS must be sipped ............... by the diarrhoea patients.

Ans: Slowly

• The ORS prepared by you should not taste saltier than your ................

Ans: Meal

• When we have diarrhoea and vomiting, we lose a lot of ............... from our body.

Ans: Water

• The village near to the water park had ................

Ans: No water

• While preparing ORS, a pinch of salt is to be mixed in boiled and cooled water

along with ................

Ans: Sugar

• When the gutter water got mixed with the drinking water pipes, many people

became sick with ...............

Ans: Diarrhoea

• Suguna's father offered the visitor a cold drink because they were not getting

................

Ans: Pure water

Q2. What was the reason for the villagers making a noise outside the water park?

Ans: The villagers making a noise outside the water park because there is no water in the well and in the water park a lot water was being wasted.

Importance of CBSE Class 4 EVS Chapter 18 Too Much Water Too Little Water

This chapter is a crucial part of the Class 4 EVS syllabus. It will help you realize how the world out there is facing a lot of problems related to drinking water. The stories will tell you how the families are struggling to find drinking water. It also teaches us how we should help each other to get drinking water.

The prime objective of the 4th EVS for Class 4 Too Much Water Too Little Water is to raise concern regarding the crisis of drinking water. Remote villages have to still depend on the water sources such as ponds, wells, canals, etc for drinking water. It causes harm to the consumers. It is also observed that gutters often get leaked and enter the water supply lines resulting in disastrous health conditions in a locality.

Related Study Materials for Class 4 EVS Chapter 18 Too Much Water Too Little Water

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• Get the summarized context of this chapter from the revision notes. These notes are compiled by the subject experts to give you an easier explanation of the context and concepts.

• Refer to these notes to understand the chapter well and to find the right answers to all the questions in the exercises.

• Once you are done studying the chapter, proceed to solve the Too Much Water Too Little Water worksheet. This worksheet comes with the revision notes. It will help you to examine your comprehension skills. Focus and find out the sections where you need to work on more.