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

Chapter 11. Nature's Treasures

Nature provides many valuable resources such as air, water, sunlight, soil, forests, rocks, minerals, and fossil fuels. These natural resources are essential for the survival of all living organisms and should be used wisely.

CBSE Full Notes

Nature's Treasures

Nature's Treasures: Things that we get directly from nature and use in our daily life are called natural resources or Nature's Treasures.

Examples of Nature's Treasures

(i) Air

(ii) Water

(iii) Sunlight

(iv) Soil

(v) Forests

(vi) Wildlife

(vii) Rocks and Minerals

(viii) Fossil Fuels

Importance of Natural Resources

(i) Support life on Earth.

(ii) Provide food and water.

(iii) Supply raw materials.

(iv) Maintain ecological balance.

Air

Air: Air is a natural resource made up of different gases that support life.

Gas	Percentage	Importance
Nitrogen	78%	Supports plant growth.
Oxygen	21%	Needed for respiration.
Carbon Dioxide and Other Gases	1%	Used in photosynthesis.

Importance of Air

(i) Helps living organisms breathe.

(ii) Supports photosynthesis.

(iii) Maintains atmospheric balance.

Water

Water: Water is an essential natural resource needed for all living organisms.

Uses of Water

(i) Drinking

(ii) Cooking

(iii) Irrigation

(iv) Industries

(v) Cleaning

Importance of Water

(i) Essential for life.

(ii) Helps plants grow.

(iii) Used in daily activities.

Water Conservation

Water Conservation: Water conservation means saving and using water carefully.

Methods of Water Conservation

(i) Rainwater harvesting.

(ii) Repair leaking taps.

(iii) Reuse water whenever possible.

(iv) Avoid wasting water.

(v) Prevent water pollution.

Sun – The Ultimate Source of Energy

Sun: The Sun is the main source of energy for life on Earth.

Uses of Solar Energy

(i) Solar cookers.

(ii) Solar water heaters.

(iii) Solar panels.

(iv) Solar street lights.

Importance of the Sun

(i) Provides heat and light.

(ii) Helps plants prepare food.

(iii) Produces clean and renewable energy.

Forests

Forests: Forests are large areas covered with trees, plants, and different kinds of animals.

Importance of Forests

(i) Release oxygen.

(ii) Absorb carbon dioxide.

(iii) Provide habitat for wildlife.

(iv) Prevent soil erosion.

(v) Maintain rainfall and climate.

(vi) Provide timber, food, and medicines.

Forest Conservation

Forest Conservation: Forest conservation means protecting forests and using them wisely.

Ways to Conserve Forests

(i) Plant more trees.

(ii) Prevent illegal cutting of trees.

(iii) Control forest fires.

(iv) Reduce the use of wood.

(v) Protect wildlife habitats.

Soil

Soil: Soil is the upper layer of the Earth that supports plant growth.

Importance of Soil

(i) Helps plants grow.

(ii) Stores water.

(iii) Provides nutrients to plants.

(iv) Supports agriculture.

Rocks and Minerals

Rocks and Minerals: Rocks are made of one or more minerals, and minerals are useful natural substances.

Mineral	Common Uses
Iron	Machines and vehicles.
Copper	Electrical wires.
Aluminium	Utensils and aircraft.
Gold	Jewellery.

Key Points

(i) Rocks contain minerals.

(ii) Minerals are used in industries.

Fossil Fuels

Fossil Fuels: Fossil fuels are natural fuels formed from the remains of ancient plants and animals.

Examples of Fossil Fuels

(i) Coal

(ii) Petroleum

(iii) Natural Gas

Uses of Fossil Fuels

(i) Transportation.

(ii) Electricity generation.

(iii) Industrial production.

(iv) Cooking fuel.

Disadvantages

(i) Cause air pollution.

(ii) Increase global warming.

(iii) Available in limited quantity.

Renewable and Non-renewable Resources

Renewable Resources: Resources that can be replaced naturally are called renewable resources.

Non-renewable Resources: Resources that cannot be replaced quickly are called non-renewable resources.

Renewable Resources	Non-renewable Resources
Can be replenished naturally.	Available in limited quantity.
Environment friendly.	Take millions of years to form.
Examples: Sunlight, Wind, Water.	Examples: Coal, Petroleum, Natural Gas.

Conservation of Natural Resources

Conservation of Natural Resources: Conservation means using natural resources carefully so that they remain available for future generations.

Methods of Conservation

(i) Reduce unnecessary use of resources.

(ii) Reuse materials whenever possible.

(iii) Recycle waste products.

(iv) Use renewable sources of energy.

(v) Plant more trees.

(vi) Save electricity and water.

(vii) Protect forests and wildlife.

Importance of Natural Resources

Importance of Natural Resources: Natural resources are essential for the survival and development of all living organisms.

Importance

(i) Provide food and water.

(ii) Supply oxygen for breathing.

(iii) Provide fuel and energy.

(iv) Supply raw materials for industries.

(v) Help maintain ecological balance.

Applications in Daily Life

Applications: Natural resources are used in many activities of our daily life.

Examples

(i) Drinking clean water.

(ii) Cooking food.

(iii) Growing crops.

(iv) Generating electricity.

(v) Building houses.

(vi) Manufacturing machines and vehicles.

Quick Revision

(i) Natural resources are gifts of nature.

(ii) Air contains about 78% nitrogen and 21% oxygen.

(iii) Water is essential for all living organisms.

(iv) The Sun is the ultimate source of energy.

(v) Forests help maintain ecological balance.

(vi) Soil is necessary for agriculture.

(vii) Rocks are made up of minerals.

(viii) Coal, petroleum, and natural gas are fossil fuels.

(ix) Renewable resources can be replaced naturally.

(x) Natural resources should be conserved for future generations.

Keywords

Natural Resources: Useful materials obtained from nature.

Water Conservation: Careful use and saving of water.

Solar Energy: Energy obtained from the Sun.

Forest Conservation: Protection and wise use of forests.

Minerals: Naturally occurring useful substances found in rocks.

Fossil Fuels: Fuels formed from ancient plants and animals.

Renewable Resources: Resources that can be replaced naturally.

Non-renewable Resources: Resources that cannot be replaced quickly.

Conservation: Careful use and protection of natural resources.

Ecological Balance: A stable relationship among living organisms and their environment.

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