All Books/Class 4/EVS/Chapter 18

Chapter 18: Too Much Water, Too Little Water

EVS • Class 4

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Chapter Analysis

Beginner10 pages • English

Quick Summary

This chapter explores the contrasting scenarios of water scarcity and abundance. It focuses on a village in Karnataka where children take initiative to address water shortage by reviving an old tank to restore water availability and greenery. The chapter also includes discussions about clean drinking water and its importance in preventing diseases like diarrhoea and vomitic by highlighting efforts to maintain water hygiene.

Key Topics

  • Water scarcity and solutions
  • Community involvement in water management
  • Hygiene and waterborne diseases
  • Water conservation practices
  • Importance of clean drinking water
  • Impact of environment on water availability

Learning Objectives

  • Understand the causes and implications of water scarcity.
  • Learn about traditional and modern solutions to enhance water availability.
  • Recognize the importance of clean drinking water for health.
  • Explore community roles in water management.
  • Identify practices to conserve water in daily life.

Questions in Chapter

What can be done to keep the toilets clean?

Page 155

Why was Raziya worried when she read the newspaper?

Page 151

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

Page 151

Additional Practice Questions

What steps can be taken to conserve water at home?

easy

Answer: Identify leaks and repair them, install water-saving fixtures, and adopt mindful water usage habits such as turning off taps while brushing teeth.

How can community efforts help in solving water scarcity?

medium

Answer: Communities can organize awareness campaigns, implement rainwater harvesting systems, and collaborate on water management projects to efficiently use resources.

Explain the impact of deforestation on water cycles and availability.

medium

Answer: Deforestation reduces soil moisture and increases surface runoff which can lead to reduced groundwater recharge and, subsequently, to water scarcity.

What role can schools play in promoting water conservation?

medium

Answer: Schools can incorporate water education into the curriculum, encourage water-saving practices, and involve students in water conservation projects.

Why is it important to boil or purify water before drinking?

easy

Answer: Boiling or purifying water kills harmful bacteria and pathogens, preventing diseases like cholera, diarrhoea, and typhoid.