Class 6 Science Chapter 11 Nature’s Treasures – Revision Notes

Quick revision notes for Class 6 Science Chapter 11 (Nature’s Treasures). These Class 6 Science Chapter 11 notes are ideal for quick revision just before exams.

What Are Natural Resources?

• Materials/services provided by Earth that support life — not made by humans.
• Examples: Sun, air, water, soil, minerals, forests, fossil fuels, wildlife.

Air

• Mixture of gases: mainly nitrogen (~78%) and oxygen (~21%), plus small amounts of CO2 and others.
• Pollution (vehicles, factories, burning waste) reduces air quality.

Water and Soil

• Water: drinking, cooking, bathing, irrigation — must not be wasted.
• Soil: supports roots, holds nutrients; forms very slowly, hard to replace once eroded.

Sunlight

• Primary energy source for almost all life on Earth.
• Enables photosynthesis in green plants; provides heat and light.

Forests

• Provide wood, fruits, medicinal plants, wildlife habitat.
• Roots hold soil together — prevent soil erosion.
• Deforestation disturbs water cycle and local climate.

Renewable vs Non-renewable Resources

• Renewable — replenished naturally in a short time (sunlight, air, water, forests if managed well).
• Non-renewable — limited, take millions of years to form (coal, petroleum, minerals).

Conservation Habits

• Turn off taps when not in use.
• Avoid unnecessary vehicle use (reduces air pollution).
• Plant trees; avoid littering.

One-Line Summary

Nature’s treasures — air, water, soil, sunlight, and forests — sustain all life, and this chapter explains how to tell renewable from non-renewable resources and why using them responsibly matters for future generations.

Written by Satish

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