ISC Class 11 Environmental Science Syllabus 2025–26 | CISCE

🌍 ISC Class 11 – Environmental Science Syllabus (2025–26)

Class: XI
Subject: Environmental Science
Board: ISC (Indian School Certificate)
Governing Body: CISCE (Council for the Indian School Certificate Examinations)

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📊 ISC Environmental Science – Question Pattern & Marking Scheme (2025–26)

Total Marks: 100

• Theory Examination: 70 marks
• Practical / Project / Internal Assessment: 30 marks

Theory Paper (3 Hours) – 70 Marks

• Section A: Very Short Answer Questions (VSA)
• Section B: Short Answer Questions (SA)
• Section C: Long Answer / Case-study–based Questions (LA)
• Questions focus on concepts, environmental issues, interpretation, and application-based understanding

Practical / Project Work – 30 Marks

• Environmental project / fieldwork
• Practical record and data analysis
• Viva voce

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🔍

The ISC Class 11 Environmental Science syllabus 2025–26, prescribed by CISCE, develops environmental awareness, scientific thinking, and responsible citizenship among students. The subject integrates ecological concepts, natural resource management, pollution studies, and sustainable development. Through theory, field-based projects, and real-life case studies, Environmental Science equips learners with the knowledge and skills needed to address contemporary environmental challenges at local, national, and global levels.

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📚 ISC Class 11 Environmental Science Syllabus 2025–26

Unit	Chapter / Topic	Learning Outcomes
Unit 1	Introduction to Environmental Science	Understand the scope, importance, and interdisciplinary nature of environmental science.
Unit 2	Earth & Its Environment	Study lithosphere, hydrosphere, atmosphere, and biosphere and their interrelationships.
Unit 3	Ecosystems	Understand structure and function of ecosystems, food chains, food webs, and energy flow.
Unit 4	Biodiversity	Learn about biodiversity, its importance, threats, and conservation strategies.
Unit 5	Natural Resources	Study renewable and non-renewable resources and methods of sustainable resource management.
Unit 6	Population & Human Development	Understand population dynamics, human development indicators, and environmental impact.
Unit 7	Pollution	Learn causes, effects, and control of air, water, soil, noise, and thermal pollution.
Unit 8	Solid Waste Management	Understand waste generation, segregation, disposal, recycling, and waste minimisation.
Unit 9	Climate Change	Study global warming, climate change causes, effects, and mitigation strategies.
Unit 10	Environmental Policies & Laws	Understand environmental legislation, policies, and role of government and citizens.
Unit 11	Sustainable Development	Learn principles of sustainability, environmental ethics, and responsible development.
Unit 12	Environmental Project Work	Apply theoretical concepts through field studies, surveys, data collection, and analysis.

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🔑 Related Keyphrases

1. ISC Class 11 Environmental Science syllabus
2. ISC Environmental Science curriculum 2025–26
3. Class 11 ISC Environmental Science subject
4. ISC Environmental Science exam pattern Class 11
5. CISCE Class 11 Environmental Science syllabus

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❓ Frequently Asked Questions (FAQs)

Q1. Is Environmental Science compulsory in ISC Class 11?
No, Environmental Science is an optional subject offered at the ISC level.

Q2. What is the exam pattern for ISC Class 11 Environmental Science?
The subject carries 100 marks, with 70 marks for theory and 30 marks for practical/project work.

Q3. Does Environmental Science include fieldwork?
Yes, fieldwork, surveys, and environmental projects form an essential part of internal assessment.

Q4. Is ISC Environmental Science useful for future studies?
Yes, it provides a strong foundation for higher studies in environmental science, geography, ecology, sustainability, and civil services.

Q5. Does the syllabus focus on current environmental issues?
Yes, topics such as pollution, climate change, biodiversity loss, and sustainable development are strongly emphasized.

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📝

The ISC Class 11 Environmental Science syllabus 2025–26 offers a comprehensive understanding of environmental systems, challenges, and solutions. By combining scientific theory with project-based learning and field studies, the subject fosters environmental responsibility and analytical thinking. This syllabus prepares students for higher academic pursuits and empowers them to contribute meaningfully to environmental conservation and sustainable development.

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