NCERT Class 8 Science Curiosity: Chapter 12 — How Nature Works in Harmony
Chapter 12 of NCERT's Class 8 Science Curiosity textbook, "How Nature Works in Harmony," explores the intricate connections within our environment. It highlights how changes in natural habitats, such as deforestation and altered rainfall patterns, can force animals like elephants to seek food and water in human areas, leading to conflicts and crop damage. The chapter emphasizes the importance of wildlife corridors for safe animal movement between forest areas. It introduces the concept of habitats and the interactions between living organisms and non-living components within them. Through activities, students are encouraged to observe and record the living and non-living elements in different habitats, fostering an understanding of ecological interdependence and the impact of human actions on nature. This chapter helps students grasp ecological balance and conservation principles vital for CBSE science learning.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 8 |
| Subject | Science |
| Book | Curiosity |
| Chapter | Chapter 12 — How Nature Works in Harmony |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 289 |
Learning outcomes
- Understand the concept of habitats and their components.
- Recognize the interconnections between living organisms and their environment.
- Analyze the impact of human activities on natural habitats and wildlife.
- Appreciate the importance of wildlife corridors for animal conservation.
- Develop observational skills by exploring local habitats.
Vocabulary
| Word | Meaning |
|---|---|
| Habitat | A place where an organism lives. |
| Vegetation | Plants considered collectively, especially those found in a particular area or habitat. |
| Wildlife ecologists | Scientists who study wild animals and their environments. |
| Corridors | Strips of land connecting forest habitats to allow safe movement of animals. |
| Interconnections | Mutual connections between two or more things. |
| Organism | An individual animal, plant, or single-celled life form. |
| Components | A part or element of something. |
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Practice questions
- What are wildlife corridors and why are they important? Answer: Wildlife corridors are marked paths connecting forest habitats, allowing animals to move safely between large forest areas without conflict with human settlements. They are important for animal survival and maintaining ecological balance.
- How can changes in rainfall patterns affect animals? Answer: Changes in rainfall can lead to scarce vegetation and dry waterholes in animal habitats, forcing them to search for food and water in human areas.
- Define the term 'habitat'. Answer: A habitat is a place where an organism lives.
- List two non-living components of a forest habitat. Answer: Two non-living components could be sunlight and water.
Frequently asked questions
Why do elephants enter human farms and villages?
Elephants enter human areas primarily when vegetation is scarce and waterholes dry up in their natural habitat, seeking food like bananas and sugarcane.
What are the consequences of habitat loss for animals?
Habitat loss forces animals to move into human habitats, leading to potential conflicts, crop damage, and difficulties in survival.
What is the purpose of wildlife corridors?
Wildlife corridors connect forest habitats, enabling safe movement of animals between larger forest areas without encountering human settlements.
How do changes in rainfall and temperature affect vegetation?
These changes can lead to the drying and shrinking of forests, impacting the availability of food and water for animals.
What is a habitat according to the chapter?
A habitat is a place where an organism lives, which could be as small as the bark of a tree.
What activity does the chapter suggest to understand habitats?
The chapter suggests exploring two nearby habitats (like a pond, forest, farm, or large tree) and listing the living and non-living things observed.
Related resources
Important topics
Topics covered
NCERT Class 8 Science — Curiosity — Chapter 12 — How Nature Works in Harmony. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.