Chapter 18 of 27
Chapter 18: Too Much Water, Too Little Water
Water Crises: Water Parks in Maharashtra, Diarrhea in Nalgonda & Village Water Committees (Holgundi) | CBSE Session 2026–27
Core Pedagogical Competencies & Concepts
- The paradox of water distribution: Massive water parks wasting millions of litres on joy slides in Bazar Gaon, Maharashtra, while neighboring farmers suffer severe drinking water shortages.
- Waterborne diseases: Drinking contaminated water causing severe diarrhea and vomiting.
- Life-saving home remedy: Oral Rehydration Solution (ORS) — 1 teaspoon sugar + a pinch of salt dissolved in 1 glass of boiled, cooled water.
- Empowerment: Children's Water Panchayat (Bheema Sangh) in Holgundi, Karnataka, rejuvenating dried village stepwells and restoring water security.
All Textbook Exercises & In-Text Tasks (13 Questions)
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Q1
Public Health & First Aid Science
What causes severe dehydration during diarrhea and vomiting? How do you prepare a homemade Oral Rehydration Solution (ORS) step-by-step?
[3 Marks]
✅ Step-by-Step Solution & Working
1. Cause of Dehydration:
During severe diarrhea and vomiting, the body rapidly loses critical water and essential mineral salts (electrolytes). If these fluids are not replaced immediately, vital organs can fail, which is especially fatal for young children.
2. Preparation of Homemade ORS:
• Step 1: Boil one glass of clean drinking water and let it cool completely.
• Step 2: Add one level teaspoon of sugar (provides instant energy and aids electrolyte absorption).
• Step 3: Add one small pinch of salt (restores sodium electrolytes; taste should not be saltier than tears).
• Step 4: Stir thoroughly until completely dissolved. Sip slowly throughout the day.
During severe diarrhea and vomiting, the body rapidly loses critical water and essential mineral salts (electrolytes). If these fluids are not replaced immediately, vital organs can fail, which is especially fatal for young children.
2. Preparation of Homemade ORS:
• Step 1: Boil one glass of clean drinking water and let it cool completely.
• Step 2: Add one level teaspoon of sugar (provides instant energy and aids electrolyte absorption).
• Step 3: Add one small pinch of salt (restores sodium electrolytes; taste should not be saltier than tears).
• Step 4: Stir thoroughly until completely dissolved. Sip slowly throughout the day.
CBSE Step-by-Step Marking Scheme
Biological danger of water and electrolyte loss
1.0 M
Exact 4-step preparation recipe (boiled water, 1 tsp sugar, pinch salt)
2.0 M
Q2
Public Health • Waterborne Illness & ORS
What causes diarrhea and vomiting? How can you prepare an Oral Rehydration Solution (ORS) at home in an emergency?
[3 Marks]
✅ Step-by-Step Solution & Working
1. Causes of Diarrhea and Vomiting:
Drinking water contaminated with sewage bacteria, amoebae, or eating unwashed, fly-infested food causes intestinal infections, leading to rapid loss of body water and vital salts (dehydration).
2. Home-Made ORS Preparation:
• Boil one glass (approx. 250 ml) of clean drinking water and let it cool.
• Add one level teaspoon of sugar and a tiny pinch of salt.
• Stir until completely dissolved. Sip slowly to replenish lost fluids and electrolytes.
Drinking water contaminated with sewage bacteria, amoebae, or eating unwashed, fly-infested food causes intestinal infections, leading to rapid loss of body water and vital salts (dehydration).
2. Home-Made ORS Preparation:
• Boil one glass (approx. 250 ml) of clean drinking water and let it cool.
• Add one level teaspoon of sugar and a tiny pinch of salt.
• Stir until completely dissolved. Sip slowly to replenish lost fluids and electrolytes.
CBSE Step-by-Step Marking Scheme
Contaminated water/food etiology explained
1.5 M
Accurate water, sugar, and salt proportions for home ORS
1.5 M
Q3
Civic Equity • Water Commercialization
In the chapter, a luxurious water park operated with splashing fountains while neighbouring villagers had no drinking water. What moral lesson does this highlight?
[2 Marks]
✅ Step-by-Step Solution & Working
Lesson on Water Justice:
Water is a fundamental human right essential for survival. Wasting millions of litres of precious potable water on recreational slides and water fountains while neighboring poor citizens queue for hours for a single bucket of dirty water represents gross civic inequality. Clean drinking water for survival must always take priority over commercial entertainment.
Water is a fundamental human right essential for survival. Wasting millions of litres of precious potable water on recreational slides and water fountains while neighboring poor citizens queue for hours for a single bucket of dirty water represents gross civic inequality. Clean drinking water for survival must always take priority over commercial entertainment.
CBSE Step-by-Step Marking Scheme
Articulating right to clean water over luxury recreational waste
2.0 M
Q4
Textbook Exercise • Core Concept Analysis
In Chapter 18 ('Too Much Water, Too Little Water'), explain the central environmental and social theme highlighted through the story of Too Much Water, Too Little Water.
[3 Marks]
✅ Step-by-Step Solution & Working
Core Theme & Learning:
1. Context: The chapter examines Water Inequality, ORS & Bhima Sangh, showing how human communities interact with nature, resources, and civic structures.
2. Social & Ecological Value: It teaches students about empathy, scientific inquiry, resource conservation, and social equality.
3. Application: Students learn to observe real-world surroundings critically and apply sustainable habits in everyday life.
1. Context: The chapter examines Water Inequality, ORS & Bhima Sangh, showing how human communities interact with nature, resources, and civic structures.
2. Social & Ecological Value: It teaches students about empathy, scientific inquiry, resource conservation, and social equality.
3. Application: Students learn to observe real-world surroundings critically and apply sustainable habits in everyday life.
CBSE Step-by-Step Marking Scheme
Contextual theme accurately explained
1 M
Social/ecological values articulated
1 M
Real-world civic application
1 M
Q5
Find Out & Write • Environmental Observation
Based on 'Too Much Water, Too Little Water', describe how children can conduct an inquiry in their local community regarding Water Inequality, ORS & Bhima Sangh. What key facts should they record?
[3 Marks]
✅ Step-by-Step Solution & Working
Community Inquiry Steps:
• Observation: Identify how local residents manage resources, traditional occupations, or civic facilities.
• Field Interview: Ask elders and workers about changes over the past decades.
• Recording: Document observations in a field notebook with drawings, dates, and action ideas.
• Observation: Identify how local residents manage resources, traditional occupations, or civic facilities.
• Field Interview: Ask elders and workers about changes over the past decades.
• Recording: Document observations in a field notebook with drawings, dates, and action ideas.
CBSE Step-by-Step Marking Scheme
Systematic inquiry method
1.5 M
Field documentation and reflection
1.5 M
Q6
Discuss & Share • Analytical Reasoning
What difficulties or ethical dilemmas are presented in 'Too Much Water, Too Little Water', and how were they resolved through community cooperation?
[3 Marks]
✅ Step-by-Step Solution & Working
Conflict & Resolution:
• Dilemma/Difficulty: Challenges arising from geographic barriers, scarcity of resources, social prejudices, or modern lifestyle changes.
• Cooperative Solution: Resolving issues through collective unity, empathetic leadership, dialogue, and mutual support among community members.
• Dilemma/Difficulty: Challenges arising from geographic barriers, scarcity of resources, social prejudices, or modern lifestyle changes.
• Cooperative Solution: Resolving issues through collective unity, empathetic leadership, dialogue, and mutual support among community members.
CBSE Step-by-Step Marking Scheme
Clear identification of dilemma
1.5 M
Cooperative resolution explained
1.5 M
Q7
Textbook Activity • Tabular Comparison
Create a two-column comparison highlighting the key differences between traditional practices and modern methods discussed in 'Too Much Water, Too Little Water'.
[3 Marks]
✅ Step-by-Step Solution & Working
Comparative Analysis:
• Traditional Practices: Grounded in natural materials, local wisdom, slower pace, and harmony with seasonal cycles.
• Modern Methods: Utilize technological equipment, faster processing, commercial scale, but require careful management to prevent environmental degradation.
• Traditional Practices: Grounded in natural materials, local wisdom, slower pace, and harmony with seasonal cycles.
• Modern Methods: Utilize technological equipment, faster processing, commercial scale, but require careful management to prevent environmental degradation.
CBSE Step-by-Step Marking Scheme
Traditional practices characterized
1.5 M
Modern methods and sustainability balance
1.5 M
Q8
Scientific Reasoning • Cause and Effect
Explain the scientific cause-and-effect relationship behind the natural phenomena or human activities explored in 'Too Much Water, Too Little Water'.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Mechanism:
1. Cause: Natural environmental conditions (climate, soil, water availability) or specific human interventions.
2. Effect: Biological adaptations in plants/animals or cultural adaptations in human shelter, clothing, and diet to maintain equilibrium.
1. Cause: Natural environmental conditions (climate, soil, water availability) or specific human interventions.
2. Effect: Biological adaptations in plants/animals or cultural adaptations in human shelter, clothing, and diet to maintain equilibrium.
CBSE Step-by-Step Marking Scheme
Causal environmental factor identified
1.5 M
Adaptive biological/cultural outcome
1.5 M
Q9
Civic Sense & Values • Responsible Citizenship
What moral duty or civic responsibility does Chapter 18 encourage every young student to practice?
[2 Marks]
✅ Step-by-Step Solution & Working
Civic Responsibility:
• Respecting biodiversity, natural resources, and the dignity of every working person.
• Rejecting discrimination based on caste, gender, or disability, and actively contributing to an inclusive, clean, and compassionate society.
• Respecting biodiversity, natural resources, and the dignity of every working person.
• Rejecting discrimination based on caste, gender, or disability, and actively contributing to an inclusive, clean, and compassionate society.
CBSE Step-by-Step Marking Scheme
Respect for resources and human dignity
1 M
Inclusivity and active civic action
1 M
Q10
Geographical Adaptation • Regional Realities
How does the geography (terrain, climate, water bodies) in 'Too Much Water, Too Little Water' shape the daily lifestyle of the people living there?
[2 Marks]
✅ Step-by-Step Solution & Working
Geographical Influence:
Geography dictates the materials used for shelter, types of crops cultivated, modes of transport developed, and daily occupations, showing human resilience and nature's influence.
Geography dictates the materials used for shelter, types of crops cultivated, modes of transport developed, and daily occupations, showing human resilience and nature's influence.
CBSE Step-by-Step Marking Scheme
Link between geography and shelter/transport/food
2 M
Q11
Resource Conservation • Action Plan
List three practical conservation measures that students can implement at school inspired by the lessons of 'Too Much Water, Too Little Water'.
[3 Marks]
✅ Step-by-Step Solution & Working
Action Plan:
1. Conserve Resources: Turn off unattended taps, fans, and reduce paper waste.
2. Green Initiatives: Plant native shrubs in school gardens and compost fallen leaves.
3. Community Awareness: Share posters and talk to peers about sustainable daily choices.
1. Conserve Resources: Turn off unattended taps, fans, and reduce paper waste.
2. Green Initiatives: Plant native shrubs in school gardens and compost fallen leaves.
3. Community Awareness: Share posters and talk to peers about sustainable daily choices.
CBSE Step-by-Step Marking Scheme
Three realistic school-level actions
3 M
Q12
Vocabulary & Terms • Environmental Terminology
Define two key environmental or socio-cultural terms introduced in Chapter 18 and use them in sentences.
[2 Marks]
✅ Step-by-Step Solution & Working
Key Terminology:
• Ecosystem / Habitat: The natural home or environment of a plant, animal, or organism where all living and non-living elements interact.
• Conservation: The careful protection and preservation of natural resources to prevent their depletion or destruction.
• Ecosystem / Habitat: The natural home or environment of a plant, animal, or organism where all living and non-living elements interact.
• Conservation: The careful protection and preservation of natural resources to prevent their depletion or destruction.
CBSE Step-by-Step Marking Scheme
Two terms defined accurately with context
2 M
Q13
Creative Reflection • Empathy Journal
Imagine you were present in the events of 'Too Much Water, Too Little Water'. Write a 3-sentence personal diary entry expressing your feelings and commitment to positive change.
[2 Marks]
✅ Step-by-Step Solution & Working
Diary Entry:
Dear Diary,
Today I learned deeply about the real-life struggles and bravery shown in 'Too Much Water, Too Little Water'. Seeing how unity and respect for nature transform communities inspires me to always protect the weak and care for the environment. I promise to take responsibility every day.
— Student Reflection
Dear Diary,
Today I learned deeply about the real-life struggles and bravery shown in 'Too Much Water, Too Little Water'. Seeing how unity and respect for nature transform communities inspires me to always protect the weak and care for the environment. I promise to take responsibility every day.
— Student Reflection
CBSE Step-by-Step Marking Scheme
Thoughtful, reflective, and empathetic diary entry
2 M
🌟 NEP 2020 Competency-Based Case Study
Bheema Sangh (Children's Water Panchayat)
In Holgundi village (Karnataka), adults gave up farming because village wells had dried up. The children's panchayat (Bheema Sangh) took charge.
Analytical Task: How did the children of Bheema Sangh restore water security to their village?
Evaluation & Model Answer:
The children surveyed the hill slopes and discovered the ancient community tank was choked with mud, weeds, and cracked walls. They convinced elders, cleaned the silt, repaired stone bunds, and planted trees on the slopes. When monsoon rains arrived, the tank held water, recharging underground wells so farming resumed.
Rubric: 1.5 Marks for identifying choked tank and desilting; 1.5 Marks for bund repair and groundwater recharge.