Class 6 Science Chapter 2 Diversity in the Living World Revision Notes

Quick revision notes for Class 6 Science Chapter 2, “Diversity in the Living World” — key definitions and facts at a glance for fast last-minute review. These Class 6 Science Chapter 2 notes are ideal for quick revision just before exams.

Key Terms

• Diversity: the variety of living things around us.
• Biodiversity: the variety of life found in a particular area or on Earth as a whole.

Grouping Plants

Pattern: Taproot + Reticulate venation + Dicot usually go together. Fibrous root + Parallel venation + Monocot usually go together.

Grouping Animals

• By movement: walking/running, flying, swimming, crawling.
• By habitat: Terrestrial (land) · Aquatic (water) · Amphibious (both).

Adaptation Examples

• Cactus: thick fleshy stem stores water (desert).
• Camel: long legs, wide hooves, hump for fat storage; hot-desert camel = 1 hump/long legs, cold-desert (Ladakh) camel = 2 humps/shorter legs/longer hair.
• Deodar tree: conical shape sheds snow easily (mountains).
• Mountain goat: thick fur, muscular build, gripping hooves.
• Fish: streamlined body, fins, gills (water).
• Duck: webbed feet for swimming; Pigeon: unwebbed feet for walking/perching.

Biodiversity Conservation — Key Facts

• Project Tiger — launched 1973, protects tigers and their habitat.
• Sacred groves — community-protected forest patches.
• Janaki Ammal — key figure in the “Save Silent Valley” movement (Palakkad, Kerala).
• Salim Ali — “the Birdman of India,” Padma Vibhushan (1976).
• Great Indian Bustard — example of a species declining due to habitat loss.

Quick revision: Solutions | Extra Questions for this chapter.

Written by Satish

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