Chapter-Chapter 11. Nature`s Treasures Science Curiosity class 6 in english Medium CBSE Notes

Chapter 11. Nature's Treasures

These CBSE Notes – Key Points are prepared according to the latest NCERT Curiosity textbook and the latest CBSE competency-based pattern. They provide a quick revision of important concepts, definitions, natural resources, conservation methods, and scientific terms covered in the chapter.

CBSE Notes – Key Points

These notes are useful for quick revision before examinations. Read the important keywords, definitions, tables, scientific terms, and facts carefully to strengthen your conceptual understanding.

Important Keywords

The following keywords are important for understanding the chapter.

Keyword	Meaning
Natural Resource	A useful material obtained directly from nature.
Renewable Resource	A resource that can be naturally replenished.
Non-renewable Resource	A resource available in limited quantity that cannot be replaced quickly.
Conservation	Careful use and protection of natural resources.
Biodiversity	Variety of living organisms found in an area.
Afforestation	Planting new trees to increase forest cover.
Deforestation	Large-scale cutting of forests.
Rainwater Harvesting	Collection and storage of rainwater for future use.
Fossil Fuel	Fuel formed from the remains of ancient plants and animals.
Weathering	Breaking down of rocks into smaller particles.

Types of Natural Resources

Natural resources are broadly classified into renewable and non-renewable resources.

Renewable Resources	Non-renewable Resources
Can be replenished naturally.	Take millions of years to form.
Available again after use.	Available in limited quantity.
Cause comparatively less pollution.	Excessive use leads to depletion.
Examples: Air, Water, Sunlight, Wind.	Examples: Coal, Petroleum, Natural Gas, Minerals.

Air

Air is essential for all living organisms and supports many natural processes.

Gas	Approximate Percentage	Importance
Nitrogen	78%	Supports the nitrogen cycle.
Oxygen	21%	Required for respiration.
Other Gases	1%	Include carbon dioxide, argon, and others.

Importance of Water

Water is one of the most valuable natural resources.

• Essential for drinking.
• Required for cooking.
• Used in agriculture.
• Needed in industries.
• Supports all living organisms.

Water Conservation

Freshwater is limited; therefore, it should be conserved.

• Practice rainwater harvesting.
• Repair leaking taps.
• Reuse water whenever possible.
• Avoid unnecessary wastage.
• Keep rivers and lakes pollution-free.

Importance of the Sun

The Sun is the ultimate source of energy on Earth.

• Provides light and heat.
• Helps plants prepare food.
• Supports the water cycle.
• Produces solar energy.

Importance of Forests

Forests are among the most valuable natural resources.

• Release oxygen.
• Absorb carbon dioxide.
• Provide habitat for wildlife.
• Prevent soil erosion.
• Maintain ecological balance.
• Provide food, medicines, and timber.

Soil

Soil is formed by the weathering of rocks and supports plant growth.

• Provides nutrients to plants.
• Stores water.
• Supports agriculture.
• Provides habitat for many organisms.

Rocks and Minerals

Rocks and minerals are important natural resources used in everyday life.

Resource	Uses
Rocks	Buildings, roads, monuments.
Iron	Machines and vehicles.
Copper	Electrical wires.
Aluminium	Utensils and aircraft.

Fossil Fuels

Fossil fuels are important but limited energy resources.

• Coal
• Petroleum
• Natural Gas

Uses

• Transportation
• Electricity generation
• Industries
• Cooking fuel

Ways to Conserve Natural Resources

Every individual should contribute towards conserving nature's treasures.

• Plant more trees.
• Save electricity.
• Use water wisely.
• Reduce, Reuse and Recycle materials.
• Prefer renewable sources of energy.
• Protect forests and wildlife.
• Avoid pollution.

Important Scientific Terms

Learn these scientific terms carefully for examinations.

Scientific Term	Meaning
Photosynthesis	Preparation of food by green plants using sunlight.
Ecological Balance	Stable relationship among living organisms and their environment.
Habitat	Natural home of an organism.
Weathering	Breaking down of rocks into soil.
Solar Energy	Energy obtained from the Sun.

Important Facts

Remember these important facts for examinations.

• Natural resources are gifts of nature.
• The Sun is the primary source of energy.
• Freshwater is limited and should be conserved.
• Forests maintain biodiversity and ecological balance.
• Soil is essential for agriculture.
• Rocks contain useful minerals.
• Fossil fuels are non-renewable resources.
• Renewable resources should be used as much as possible.
• Conservation helps protect resources for future generations.
• Every citizen has a responsibility to protect nature.

Quick Revision

Revise the following points before your examination.

• Natural resources are essential for life.
• Air, water, sunlight, forests, soil, rocks, and minerals are important natural resources.
• Renewable resources can be replenished naturally.
• Non-renewable resources should be used carefully.
• Rainwater harvesting helps conserve water.
• Forests prevent soil erosion and support biodiversity.
• Fossil fuels are limited sources of energy.
• Reduce, Reuse, and Recycle help conserve resources.
• Renewable energy reduces pollution.
• Conserving nature's treasures ensures a sustainable future.

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