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CBSE Class 8 Science Chapter 5 Conservation of Plants and Animals Worksheet with Answers

Conservation of Plants and Animals is a cornerstone chapter in Class 8 Science, introducing students to biodiversity, ecosystem balance, and human responsibility toward nature. This printable worksheet is structured for 90-minute practice and covers the entire NCERT Chapter 5 syllabus—from endemic species and endangered animals to wildlife sanctuaries and biosphere reserves. Use this sheet for self-assessment, homework, or classroom tests to solidify your understanding and prepare confidently for CBSE exams.

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Key takeaways

✓Biodiversity refers to the variety of life forms—plants, animals, microorganisms—found in a particular habitat or on the entire planet.
✓Endemic species are those found exclusively in a specific geographical region and nowhere else in the world.
✓Endangered species face a high risk of extinction due to habitat loss, poaching, climate change, and human activities.
✓Wildlife sanctuaries protect animals in their natural habitat while allowing limited human activity; biosphere reserves are multi-purpose protected areas conserving biodiversity, culture, and sustainable development.
✓Red Data Books maintain records of endangered species; Project Tiger and Project Elephant are India's flagship conservation programmes.
✓Deforestation destroys habitats, disrupts food chains, reduces biodiversity, and contributes to climate change and soil erosion.
✓Reforestation, afforestation, and social forestry are key strategies to restore degraded ecosystems and conserve flora and fauna.

Quick Chapter Recap: Conservation of Plants and Animals

Chapter 5 in NCERT Class 8 Science introduces biodiversity—the variety of life forms in different ecosystems—and explains why conserving plants and animals is crucial for ecological balance. Students learn the difference between endemic species (found only in specific regions, like the Asiatic lion in Gir Forest) and endangered species (those at risk of extinction, such as the Bengal tiger and one-horned rhinoceros). The chapter also explains protected areas: wildlife sanctuaries, where animals live in natural habitats with restricted human interference; national parks, where human activities are even more tightly controlled; and biosphere reserves, which integrate conservation with sustainable development and cultural preservation. Deforestation, poaching, habitat destruction, and climate change are identified as major threats. Conservation strategies include afforestation, setting up protected areas, breeding programmes, and public awareness campaigns like Project Tiger and Project Elephant. The Red Data Book is introduced as an official record of endangered species maintained by the International Union for Conservation of Nature.

Biodiversity: variety of life in an ecosystem or on Earth
Endemic species: unique to one geographic location (e.g. Sangai deer in Manipur)
Endangered species: at serious risk of extinction (e.g. Great Indian Bustard)
Wildlife sanctuaries: protect fauna, limited human activity allowed
Biosphere reserves: conservation + sustainable use + cultural preservation
Red Data Book: records endangered plant and animal species globally

Worksheet Instructions and Difficulty Level

This worksheet is tailored for CBSE Class 8 students following the latest NCERT Science syllabus for Chapter 5. It is designed at a moderate difficulty level, blending recall-based questions with application and higher-order thinking skills (HOTS). The suggested time to complete the entire worksheet is 90 minutes under exam conditions, though students may take longer if working at home with reference to notes. Each section progressively builds complexity: Section A tests factual recall through multiple-choice questions; Section B checks vocabulary and terminology; Section C assesses conceptual clarity with true/false and matching; Sections D and E require explanations, reasoning, and real-world application. A case-study question mirrors the CBSE competency-based pattern introduced in recent board exams. The complete answer key at the end includes concise explanations so students can self-correct and learn from mistakes. Parents and teachers can print this sheet for classroom tests, homework assignments, or weekend revision practice.

Difficulty: Moderate (suitable for average to advanced Class 8 learners)
Time: 90 minutes (under exam conditions)
Sections: A–E plus one case study, followed by a detailed answer key
Use: Homework, self-assessment, class tests, board exam revision
Answer key: Every answer includes a brief explanation for clarity

Section A: Multiple Choice Questions (1 mark each)

Multiple-choice questions test your understanding of definitions, facts, and key concepts from NCERT Class 8 Science Chapter 5. Read each question carefully and choose the single best answer. These questions cover biodiversity, endemic and endangered species, protected areas, deforestation impacts, and conservation projects. Practising MCQs improves speed and accuracy for objective-type sections in CBSE board exams. Answers are provided in the answer key section at the end of this worksheet. Aim to complete all six questions in 10–12 minutes. Mark your answers clearly and review any you found difficult after checking the key.

Q1. Which of the following is an endemic species of India? (a) Tiger (b) Asiatic lion (c) Elephant (d) Peacock
Q2. The primary objective of a biosphere reserve is to: (a) Promote tourism (b) Conserve biodiversity and culture (c) Generate revenue (d) Restrict all human activity
Q3. Deforestation leads to: (a) Increase in rainfall (b) Loss of biodiversity (c) Improved soil fertility (d) Lower temperatures
Q4. Project Tiger was launched in the year: (a) 1970 (b) 1973 (c) 1980 (d) 1992
Q5. Red Data Book contains information about: (a) Extinct species only (b) Endangered species (c) All plant species (d) Medicinal plants
Q6. Which area allows limited human activity for research and education? (a) Biosphere reserve core zone (b) Wildlife sanctuary (c) National park (d) Reserved forest

Section B: Fill in the Blanks (1 mark each)

Fill-in-the-blank questions require precise recall of terminology and facts from the chapter. Write the correct word or phrase in each blank space. These questions focus on vocabulary such as endemic, endangered, deforestation, reforestation, flora, fauna, ecosystem, Red Data Book, and the names of protected areas and conservation projects. Spelling should be accurate, as CBSE examiners may deduct marks for incorrect spelling in descriptive answers. Use your NCERT Class 8 Science textbook and notes to revise key terms before attempting this section. Complete all five blanks in about 8–10 minutes. The answer key provides the exact term expected along with a short explanation to reinforce your learning and ensure conceptual clarity beyond rote memorization.

Q7. Species found exclusively in a particular area are called __________ species.
Q8. The variety of plants, animals, and microorganisms in an area is called __________.
Q9. __________ is the process of replanting trees in deforested or barren land.
Q10. The book that keeps a record of endangered species is known as __________.
Q11. A __________ is a protected area where wildlife can live in natural habitats with some controlled human interference.

Section C: True or False (1 mark each)

Read each statement carefully and write 'True' if the statement is correct or 'False' if it is incorrect. These questions test conceptual understanding and the ability to identify common misconceptions about biodiversity, conservation methods, protected areas, and the impacts of human activities. True/false questions appear frequently in CBSE Class 8 Science exams, especially in the objective section. To score full marks, ensure you understand the reasoning behind each statement rather than guessing. After completing this section, cross-check your answers with the provided answer key, which includes justifications for every true or false designation. Aim to finish this section in 6–8 minutes. If a statement seems ambiguous, re-read the relevant portion in your NCERT textbook to confirm the correct answer and deepen your grasp of the underlying concept.

Q12. Endangered species are those that are found only in a particular region. (True/False)
Q13. Wildlife sanctuaries allow some restricted human activities. (True/False)
Q14. Deforestation increases the amount of carbon dioxide in the atmosphere. (True/False)
Q15. National parks have more restrictions on human activity than wildlife sanctuaries. (True/False)
Q16. Paper can be recycled to reduce deforestation. (True/False)

Section D: Short Answer Questions (2–3 marks each)

Short-answer questions require you to explain concepts, define terms, give examples, or describe processes in 30–50 words. These questions are worth 2–3 marks each in CBSE exams and test your ability to articulate ideas clearly and concisely. Focus on writing complete sentences, using correct scientific terminology from the NCERT Class 8 Science textbook, and supporting your answers with examples wherever possible. Common topics include the difference between endangered and endemic species, the role of wildlife sanctuaries, causes and effects of deforestation, and India's conservation initiatives like Project Tiger. Practising short answers builds writing speed and helps you learn to present information logically within strict word limits. Allocate about 15–20 minutes for this section. The answer key provides model answers with the expected content and structure, so compare your responses carefully to identify areas for improvement.

Q17. Define biodiversity. Why is it important?
Q18. Differentiate between endemic species and endangered species with one example each.
Q19. What is a wildlife sanctuary? How does it differ from a national park?
Q20. List three major causes of deforestation.
Q21. Explain the purpose of the Red Data Book.

Section E: Long Answer and HOTS Questions (5 marks each)

Long-answer questions demand detailed explanations, critical thinking, and the ability to connect multiple concepts from NCERT Class 8 Science Chapter 5. Each question is worth 5 marks and should be answered in 80–120 words, using well-structured paragraphs with clear topic sentences, supporting details, and examples. Higher-order thinking skills (HOTS) questions encourage you to analyse real-world scenarios, evaluate conservation strategies, and propose solutions to environmental challenges. These questions prepare you for competency-based assessment patterns increasingly used in CBSE board exams. When answering, break complex ideas into points or sub-headings if it helps clarity. Always relate your answer to the Indian context—mention projects like Project Tiger, Project Elephant, or specific biosphere reserves such as Nanda Devi or Sundarbans. Allocate 20–25 minutes for Section E. The answer key provides comprehensive model answers; compare them with your own to refine your writing style, depth of explanation, and use of examples. For extra practice and instant doubt-solving, CBSETUTOR.ai offers 24×7 AI tutoring with photo-upload problem solving at just ₹999/month for all classes 6–12, with a 3-day free trial.

Q22. Discuss the major threats to biodiversity and suggest measures to conserve it.
Q23. Describe the structure and functions of a biosphere reserve. Give an example from India.
Q24. How does deforestation affect the environment and wildlife? Explain with examples.

Section F: Case Study Based Question (4 marks)

Case-study questions are a newer pattern in CBSE exams, designed to test your ability to apply theoretical knowledge to real-life situations. Read the passage carefully, underline key facts, and then answer the sub-questions that follow. This format assesses comprehension, analytical thinking, and the ability to draw conclusions from data or scenarios. The case study below is based on conservation efforts in India and aligns with NCERT Class 8 Science Chapter 5 themes. Answer each sub-question in 20–30 words. Allocate about 10–12 minutes for this section. The answer key provides model responses with reasoning, helping you understand how to extract relevant information from the passage and frame concise, accurate answers. Practising case studies improves exam readiness and builds confidence in handling unfamiliar question formats that require integrated thinking across the syllabus.

Answer Key with Explanations

This section provides the correct answers for every question in the worksheet, along with brief explanations to reinforce learning. Cross-check your responses carefully, paying attention not just to whether your answer matches, but also to the reasoning and terminology used. Understanding why an answer is correct—or why you got it wrong—is more valuable than rote memorization. For MCQs, the key identifies the correct option and explains why the others are incorrect. Fill-in-the-blank answers include the exact term and a short definition. True/false answers clarify common misconceptions. Short- and long-answer model responses demonstrate the level of detail, structure, and use of examples expected in CBSE exams. Use this answer key as a study tool: if you scored below 70 percent on any section, revisit the relevant pages in your NCERT Class 8 Science textbook and class notes before attempting another worksheet. For personalized help with tricky concepts, interactive quizzes, and unlimited doubt-clearing, explore CBSETUTOR.ai, where students get 24×7 AI-powered tutoring at a flat ₹999/month for all subjects in classes 6–12, backed by a 3-day free trial to experience the platform risk-free.

A1. (b) Asiatic lion – It is endemic to Gir Forest in Gujarat and found nowhere else in the wild.
A2. (b) Conserve biodiversity and culture – Biosphere reserves integrate conservation with sustainable development and cultural heritage.
A3. (b) Loss of biodiversity – Deforestation destroys habitats, leading to species extinction and ecosystem imbalance.
A4. (b) 1973 – Project Tiger was launched in 1973 to protect the Bengal tiger and its habitat.
A5. (b) Endangered species – The Red Data Book, maintained by IUCN, lists species at risk of extinction.
A6. (b) Wildlife sanctuary – These areas protect animals with some controlled human activity for education and research.
A7. Endemic – Endemic species are unique to a specific geographic area.
A8. Biodiversity – Biodiversity refers to the variety of life forms in an ecosystem.
A9. Reforestation – Reforestation involves replanting trees in deforested areas.
A10. Red Data Book – It records endangered and threatened species globally.
A11. Wildlife sanctuary – These are protected zones for fauna with limited human interference.
A12. False – Endangered species are at risk of extinction, not necessarily limited to one region. Endemic species are region-specific.
A13. True – Wildlife sanctuaries permit regulated activities like tourism and research.
A14. True – Trees absorb CO₂; deforestation increases atmospheric carbon dioxide, worsening climate change.
A15. True – National parks prohibit most human activities; wildlife sanctuaries allow limited regulated use.
A16. True – Recycling paper reduces the demand for fresh wood pulp, thereby lowering deforestation pressure.
A17. Biodiversity is the variety of plants, animals, and microorganisms in an area. It is vital for ecosystem stability, food security, medicine, and ecological balance.
A18. Endemic species exist only in specific regions (e.g. Sangai deer in Manipur). Endangered species face extinction risk (e.g. Great Indian Bustard).
A19. A wildlife sanctuary is a protected area where animals live in natural habitats with some human activity allowed. National parks have stricter rules, prohibiting most human interference.
A20. Three major causes: (i) Agricultural expansion, (ii) Logging for timber and fuelwood, (iii) Urbanization and infrastructure development.
A21. The Red Data Book, maintained by IUCN, records endangered and threatened species to guide conservation priorities and policy-making.
A22. Threats include habitat loss, poaching, pollution, climate change, and invasive species. Measures: establish protected areas, enforce wildlife laws, promote afforestation, raise public awareness, and support breeding programmes like Project Tiger.
A23. A biosphere reserve has three zones: core (no human interference), buffer (limited research/education), and transition (sustainable use). Example: Nanda Devi Biosphere Reserve conserves Himalayan flora, fauna, and indigenous culture while allowing eco-tourism and sustainable livelihoods.
A24. Deforestation destroys habitats, causing species extinction and disrupting food chains. It reduces rainfall, increases soil erosion, and raises atmospheric CO₂. Example: Clearing Amazon rainforest threatens countless species and accelerates climate change.
A25(a). The Sundarbans is a biosphere reserve because it conserves unique mangrove ecosystems, endangered species like the Royal Bengal tiger, and supports sustainable community livelihoods.
A25(b). Royal Bengal tiger and saltwater crocodile.
A25(c). Rising sea levels and human encroachment.
A25(d). Strengthen anti-poaching patrols, promote community-based eco-tourism, and restore mangrove habitats.

How to Use This Worksheet Effectively

To maximise learning, attempt this worksheet under timed, exam-like conditions. Set a 90-minute timer, keep your NCERT textbook and notes aside, and answer all sections honestly without peeking at the answer key. After completing the worksheet, take a 10-minute break, then review your answers against the key. Mark each question right or wrong, calculate your score for each section, and identify patterns—are you losing marks in MCQs, short answers, or long explanations? Weak areas indicate topics that need revision. Reread those sections in NCERT Class 8 Science Chapter 5, watch educational videos, or use interactive platforms for deeper understanding. Reattempt incorrect questions after a day or two to reinforce learning. Teachers can use this worksheet for periodic assessments, homework assignments, or as a model for designing similar question papers. Parents can print it for weekend practice or revision before unit tests. For students seeking continuous practice, instant feedback, and 24×7 doubt support, CBSETUTOR.ai offers AI-powered tutoring that covers every CBSE subject from Class 6 to 12 at a flat ₹999/month, complete with photo-upload problem solving and a 3-day free trial. This worksheet, combined with regular NCERT reading and active classroom participation, will build strong conceptual foundations and exam confidence for Conservation of Plants and Animals and beyond.

Attempt the worksheet in one 90-minute sitting without referring to notes
Self-assess using the answer key and calculate your percentage for each section
Identify weak topics (low scores) and revise those NCERT sections thoroughly
Reattempt difficult questions after 1–2 days to check retention and improvement
Teachers: use as a class test, homework, or model for creating similar worksheets
Parents: print for weekend practice or pre-exam revision sessions at home

Frequently asked questions

What topics from NCERT Class 8 Science Chapter 5 are covered in this worksheet?+

This worksheet covers all major topics: biodiversity, endemic and endangered species, wildlife sanctuaries, national parks, biosphere reserves, deforestation, reforestation, and conservation projects like Project Tiger and Project Elephant, aligned with the CBSE 2025 syllabus.

How much time should my child take to complete this worksheet?+

Under exam conditions, students should aim to complete the entire worksheet in 90 minutes. At home with notes, they may take longer. Sections A–C are quicker; Sections D–E and the case study require more time and thought.

Are the answers provided with explanations?+

Yes, the answer key includes correct answers plus brief explanations for every MCQ, fill-in-the-blank, true/false, and descriptive question. This helps students self-correct, understand mistakes, and learn the reasoning behind each answer.

Can this worksheet be used for school tests or only for home practice?+

Teachers can use this worksheet as a ready-made class test, homework assignment, or revision material. Parents and students can print it for self-study, weekend practice, or pre-exam revision. It is designed to suit both classroom and home settings.

What is the difficulty level of this worksheet?+

The worksheet is at a moderate difficulty level suitable for average to advanced Class 8 learners. It blends factual recall with application and higher-order thinking questions, mirroring the pattern and rigor of CBSE board exams and school assessments.

How can my child improve weak areas identified after attempting this worksheet?+

After scoring, identify sections with low marks. Reread the corresponding NCERT Chapter 5 pages, make notes, and reattempt those questions after a day. For personalized help, CBSETUTOR.ai offers 24×7 AI tutoring at ₹999/month with a 3-day free trial.

Does the worksheet include the new case-study question format?+

Yes, Section F contains a case-study question with four sub-parts, reflecting the competency-based assessment pattern introduced in recent CBSE exams. This trains students to apply knowledge to real-world conservation scenarios.

Is this worksheet aligned with the latest CBSE syllabus?+

Absolutely. The worksheet is based on the 2025 NCERT Class 8 Science Chapter 5 syllabus, covering biodiversity, endemic and endangered species, protected areas, and conservation, exactly as prescribed by CBSE.

Can I get more worksheets like this for other Class 8 Science chapters?+

Yes, CBSETUTOR.ai provides chapter-wise worksheets, notes, and practice questions for every NCERT chapter across all subjects for classes 6–12. Explore the platform with a 3-day free trial at ₹999/month for unlimited access.

How should teachers use this worksheet in the classroom?+

Teachers can administer it as a 90-minute class test, assign it for homework, or use sections selectively for quick quizzes. The detailed answer key saves marking time and can be shared with students for self-assessment and peer learning.

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