Chapter 4 of 10
Chapter 4: Our School — A Happy Place
Fostering inclusive school communities, Green School practices, waste segregation, water harvesting, and student safety | CBSE Session 2026–27
Core Pedagogical Competencies & Concepts
- Inclusive Learning Spaces: A happy school welcomes every student regardless of physical ability, gender, mother tongue, or socioeconomic background; features barrier-free architecture (ramps, wide doors, tactile tactile tiles).
- Green School Concept: Schools that reduce environmental footprint through renewable energy (rooftop solar), rainwater harvesting, natural daylight, and active tree planting.
- Waste Segregation at Source: Using color-coded bins—Green for wet organic waste (biodegradable food scraps, fruit peels) and Blue for dry recyclables (paper, cardboard, clean plastic).
- School Composting: Creating an aerobic compost pit to convert fallen garden leaves and vegetable scraps from the mid-day meal into rich organic humus for the school garden.
- Swachh Bharat Swachh Vidyalaya: Safe treated drinking water, gender-segregated clean sanitation facilities, regular soap handwashing stations, and student health monitoring.
- Safety & Well-being: Creating emotional and physical security through anti-bullying policies, fire safety evacuation drills, and peer support systems.
All Textbook Exercises & In-Text Tasks (22 Questions)
100% Complete Ingestion
Q1
Social Values & Inclusion
What makes a school truly 'inclusive' and welcoming for all children, including children with special needs (Divyangjan)?
[3 Marks]
✅ Step-by-Step Solution & Working
An inclusive school ensures that every child, regardless of physical, sensory, or socio-economic differences, learns alongside their peers with dignity and full participation.
Key Elements of an Inclusive School:
Key Elements of an Inclusive School:
- Barrier-Free Infrastructure: Gentle ramps with handrails alongside stairs, wide classroom doorways for wheelchairs, and accessible ground-floor toilets.
- Sensory Learning Aids: Tactile flooring tiles and Braille signage on classroom doors for visually challenged students; visual timetables and charts for hearing-impaired children.
- Culture of Empathy and Friendship: Teachers and peers who encourage collaborative group-work, celebrate diverse talents, and maintain a strict zero-tolerance policy toward bullying or teasing.
CBSE Step-by-Step Marking Scheme
Definition of inclusive education and equal dignity
1 Mark
Physical accommodations (ramps, wide doors, Braille)
1 Mark
Social atmosphere of peer empathy and anti-bullying
1 Mark
Q2
Waste Management
Explain waste segregation at source. What types of waste belong in the Green Bin and the Blue Bin?
[3 Marks]
✅ Step-by-Step Solution & Working
Waste Segregation at Source means separating different types of garbage at the exact moment and location they are generated, preventing contamination and enabling recycling and composting.
Color-Coded Segregation System:
Color-Coded Segregation System:
- Green Bin (Wet / Biodegradable Waste): Organic matter that decomposes naturally into soil.
Items: Fruit and vegetable peels, leftover food, tea leaves, fallen leaves, eggshells, and used paper napkins. - Blue Bin (Dry / Recyclable Waste): Non-biodegradable materials that can be processed and reused in factories.
Items: Plastic bottles, milk pouches, cardboard cartons, notebook paper, aluminum cans, glass bottles, and metal bottle caps.
CBSE Step-by-Step Marking Scheme
Definition and importance of sorting waste at source
1 Mark
Green bin contents (biodegradable organic materials with examples)
1 Mark
Blue bin contents (recyclable non-biodegradable items with examples)
1 Mark
Q3
Biological Process & Soil Science
How does a school compost pit turn organic waste into dark, nutrient-rich manure? Describe the biological process.
[4 Marks]
✅ Step-by-Step Solution & Working
The School Composting Process:
- Digging the Pit: A shallow pit (about 1 metre deep) is dug in a shaded corner of the school garden.
- Layering Organic Materials:
- Brown Layer: Dry fallen leaves, shredded cardboard, and twigs (rich in Carbon).
- Green Layer: Vegetable peels, fruit rinds, and food scraps from the mid-day meal (rich in Nitrogen).
- Role of Decomposers: Soil bacteria, fungi, and earthworms enter the moist pile. They feed on organic waste, breaking down complex plant matter into simple nutrients.
- Aeration & Moisture: Turning the pile weekly provides oxygen for aerobic bacteria and prevents bad odors. Light sprinkling of water maintains essential humidity.
- Result (Humus): Within 6–8 weeks, the waste transforms into crumbly, dark brown, sweet-smelling organic manure (humus) that enriches garden soil without synthetic chemicals.
CBSE Step-by-Step Marking Scheme
Setup and alternating brown (carbon) and green (nitrogen) layers
1.5 Marks
Action of decomposers (bacteria, fungi, earthworms)
1.5 Marks
Outcome: organic manure/humus in 6-8 weeks
1 Mark
Q4
Practical Checklist & Leadership
Activity: Create a 5-point 'School Cleanliness & Safety Inspection Checklist' that student monitors can execute weekly.
[4 Marks]
✅ Step-by-Step Solution & Working
Weekly Student Safety & Cleanliness Audit Checklist:
- Drinking Water Station: Check that RO filters are operating, taps are not dripping, and surrounding drainage is clean with no stagnant puddles where mosquitoes could breed.
- Restrooms & Handwashing: Verify that soap dispensers are fully filled, running water is available in all taps, and toilet floors are clean, dry, and sanitized.
- Waste Bins: Inspect classrooms and corridors to ensure that waste bins have lids, are properly separated into Green and Blue bins, and are emptied before overflowing.
- Corridor & Staircase Safety: Ensure stair handrails are firmly anchored, pathways are free of obstacles, loose electrical wires, or slippery wet patches.
- Playground & Sports Equipment: Check that swing chains, slides, and football goalposts are securely bolted without sharp protruding nails or broken glass on the field.
CBSE Step-by-Step Marking Scheme
Five comprehensive, realistic inspection areas
2.5 Marks
Clear hygiene, disease-prevention, and physical safety criteria
1.5 Marks
Q5
Environmental Citizenship
What is the 'Green School' initiative, and how can students contribute to reducing their school's carbon footprint?
[3 Marks]
✅ Step-by-Step Solution & Working
A Green School is an educational institution that actively designs its campus, operations, and curriculum to conserve natural resources, minimize waste, and foster environmental stewardship.
Student Contributions:
Student Contributions:
- Energy Conservation: Appoint 'Energy Monitors' in every classroom to turn off fans, tube-lights, and smartboards whenever the class moves to the playground or lab.
- Herbal Garden (Poshan Vatika): Plant native trees, flowering shrubs, and vegetables in school courtyards to enhance biodiversity and provide fresh produce for school meals.
- Zero Single-Use Plastic Policy: Bring water in reusable steel bottles and carry lunches in stainless steel tiffin boxes, completely banning disposable plastic wrappers.
CBSE Step-by-Step Marking Scheme
Definition of Green School concept
1 Mark
Practical student contributions (energy saving, planting, plastic elimination)
2 Marks
Q6
Hygiene & Preventative Health
Why is handwashing with soap for 20 seconds essential before eating? Explain the scientific rationale.
[3 Marks]
✅ Step-by-Step Solution & Working
Throughout the school day, students touch desks, door handles, sports balls, and library books, picking up millions of invisible bacteria and virus particles on their hands.
Scientific Rationale for 20 Seconds with Soap:
Scientific Rationale for 20 Seconds with Soap:
- Soap Breaks Lipid Membranes: Soap molecules have a polar water-loving head and a non-polar fat-loving tail. The tail binds to the protective fatty membrane of germs and dissolves it, destroying the virus or bacteria.
- Friction Dislodges Germs: Rubbing palms, backs of hands, between fingers, and under fingernails for at least 20 seconds creates enough mechanical lather to detach stubborn germs from skin grooves.
- Rinsing Away Contaminants: Running water washes the dead microbes away, preventing diarrheal diseases, stomach infections, and influenza.
CBSE Step-by-Step Marking Scheme
Explanation of microbial transfer on surfaces
1 Mark
Chemical action of soap on germ lipid membranes
1 Mark
Importance of 20 seconds friction and thorough rinsing
1 Mark
Q7
Think and Discuss • Environmental Science & Ecology • Our School — A Happy Place
[Textbook Activity & Question 1] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q8
Find Out and Write • Observational Field Study • Our School — A Happy Place
[Textbook Activity & Question 2] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q9
Scientific Investigation • Ecosystem Relationships • Our School — A Happy Place
[Textbook Activity & Question 3] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q10
Traditional Wisdom & Community Stewardship • Conservation • Our School — A Happy Place
[Textbook Activity & Question 4] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q11
Survey & Data Collection • Experiential Inquiry • Our School — A Happy Place
[Textbook Activity & Question 5] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q12
Health, Diet & Human Biology • Nutritional Science • Our School — A Happy Place
[Textbook Activity & Question 6] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q13
Disaster Preparedness & Climate Resilience • Geography • Our School — A Happy Place
[Textbook Activity & Question 7] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q14
Biodiversity & Habitat Adaptations • Wildlife Protection • Our School — A Happy Place
[Textbook Activity & Question 8] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q15
Think and Discuss • Environmental Science & Ecology • Our School — A Happy Place
[Textbook Activity & Question 9] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q16
Find Out and Write • Observational Field Study • Our School — A Happy Place
[Textbook Activity & Question 10] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q17
Scientific Investigation • Ecosystem Relationships • Our School — A Happy Place
[Textbook Activity & Question 11] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q18
Traditional Wisdom & Community Stewardship • Conservation • Our School — A Happy Place
[Textbook Activity & Question 12] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q19
Survey & Data Collection • Experiential Inquiry • Our School — A Happy Place
[Textbook Activity & Question 13] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q20
Health, Diet & Human Biology • Nutritional Science • Our School — A Happy Place
[Textbook Activity & Question 14] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q21
Disaster Preparedness & Climate Resilience • Geography • Our School — A Happy Place
[Textbook Activity & Question 15] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
Q22
Biodiversity & Habitat Adaptations • Wildlife Protection • Our School — A Happy Place
[Textbook Activity & Question 16] In 'Our School — A Happy Place', describe how students can conduct an empirical investigation or discussion on this topic and explain the scientific principles involved.
[3 Marks]
✅ Step-by-Step Solution & Working
Scientific Model Answer & Environmental Analysis:
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
1. Field Inquiry / Observation: In Our School — A Happy Place, students examine real-world ecological relationships, habitat dependencies, and sustainable environmental practices.
2. Scientific Core Principles: Applying primary scientific methods—such as formulating a hypothesis, measuring field parameters, and recording observations in a nature journal—reveals direct linkages between human communities and natural cycles.
3. Stewardship Conclusion: Understanding these concepts cultivates empathy for living organisms and empowers students to implement eco-friendly conservation measures in daily life.
CBSE Step-by-Step Marking Scheme
Observation methodology & identification of ecological concepts
1.0 M
Scientific explanation of natural cause-and-effect processes
1.0 M
Actionable conservation recommendations stated clearly
1.0 M
🌟 NEP 2020 Competency-Based Case Study
Transforming an Idle School Courtyard into a Biodiverse Learning Eco-Hub
An unpaved 200-square-metre courtyard behind the school cafeteria was filled with discarded furniture, thorny weeds, and plastic litter. The Student Council proposed reclaiming this space as an educational Eco-Hub.
Analytical Task: Develop an actionable proposal for the School Principal outlining how students, teachers, and parents can collaborate to transform this abandoned courtyard into a self-sustaining biodiversity zone.
Evaluation & Model Answer:
Action Proposal: School Biodiversity Learning Hub
- Community Clean-up & Shramdaan: Organize a Saturday volunteer drive with students, teachers, and parents to clear weeds, collect plastic for recycling, and repair salvageable wooden desks into garden benches.
- Kitchen Garden (Poshan Vatika): Use discarded tyres and wooden crates as raised planting beds to grow mint, coriander, spinach, and tomatoes irrigated using wastewater from the kitchen rice-rinsing station.
- Pollinator Habitat: Plant indigenous nectar-rich flowering shrubs (Marigold, Hibiscus, Tulsi) to attract honeybees, butterflies, and ladybirds for hands-on pollination lessons.
- Twin Aerobic Compost Bins: Construct two brick-lined composting chambers fed by cafeteria organic scraps, producing dark fertilizer for the courtyard garden.
- Outdoor Nature Classroom: Place log seats under shaded trees where science, art, and environmental studies classes are conducted in the fresh air.
Rubric: 2 Marks for collaborative clean-up and recycling plan + 3 Marks for educational integration (kitchen garden, pollinator plants, compost bins, outdoor classroom) = 5 Marks