SLM for class 8 on Social Science

1. Meenakshi Mandal
ID NO: 14162029
10-3-15
TOPICS
1.1 Resource
1.2 Types of resources
1.3 Natural Resource
1.4 Resources on the basis of development
1.5 Resources on the basis of origin
1.6 Renewable/non renewable resources
1.7 On the basis of distribution
1.8 Human made resources
1.9 Human resource
1.10 Resource conservation
In this chapter youwill learn:
What is resource, its uses, value

2. Different types of resources based on development, use, origin, distribution
What is natural resource with examples and activity
What is human made resource
What is human resources
How do we do resource conservation?
1.1) Look At these pictures :
1)
2)
( Each of This has Its use like clothes we need to wear, Utensils for
cooking Food, Foodgrains to eat, Books to read and Write.) So all of
these has its own purpose an use, that is why they all are Important
and so known as Resources.

3. For Example:
1) Water ( Is an resource as we use it to drink)
2) Electricity ( It is an Resource as we use to light our homes and many other
uses)
3) Vegetable ( It is an Resource as we use to eat)
4) Textbook ( we use it to read)
5) Auto rickshaw( It is an Resource as we use it for travelling)
“Sowe Cansaythatanything that can beused to satisfy a need is a resource.”
So utility or usability makes an Object or substance resource.
al
Let’s Do
Look Around You and list out all the resources and so its use.
Then prepare a list and Differentiate 5 Items of household resources
and 5 of Classroom resources.

4. Note: Things become Resources only when they have Value. And so its use or utility
gives it a value, therefore all resources have its value.
Some have more value, less value. Value means Worth. Value means Worth; some has
economic value, while some don’t have it.
For Example:
1) Pictures of Metals and Gold
Both have Economic value but at same time if we look at pictures of beautiful landscape or
Waterfall (Both are Resources but don’t have economic value)

5. Similarly some of the resources become economically valuable with time
Like Grandmother Medicine remedies have no commercial value today but if
they are patented and sold in the market, it could become economically
valuable
So Time and Technology are the two important factors that can change the substances into
resources. People themselves are the most important resource as by their inventions,
discoveries lead to creation of more resources.
For Example:
Discovery
of Fire
Whichledto
cooking?

6. Similarly invention of wheel has led to development of modes of transport
A best example is the love between mother and a child where
Where motheristhe valuable
bodyand the childisan
importantResource.

7. Activity:
Circle those items which have no commercial value in the following
1) Cotton Cloth
2) Intelligence
3) Iron Ore
4) Agricultural land
5) Old Folk Songs
6) Beautiful scenery
7) Clean environment
8) Coal deposits
9) Good weather
10) Medicinal Plants
1.2) Types of resources
Resources are generally classified into:
a) Natural
b) Human made
c) Human
1.3
A) Natural Resources
Resources which are free gifts of nature that can be drawn from nature and used with
put much modification are called as NATURAL RESOURCE.
For Example:
1) The Air we breathe

8. 2) The water in lakes and rivers
3) Beautiful Flowers
Now, these natural resources are classified into different groups depending upon their
level of development and use, origin, stock and distribution.
1.4) On the basis of their development and use Resources can be classified into
a) ACTUAL
b) POTENTIAL
A) Actual Resources
Actual resources are those that have been surveyed, their
quantity and quality determined, and are being used in
present times.

9. For Example :
i) Petroleum and natural gas is actively being obtained from the Mumbai High Fields.
ii) Dark soils of deccan Plateau in maharashtra
B) Potential Resources
Potential resources are those whose entire quantity may not be known and these are not being used at
present. These resources could be used in future. The level of technology we have at present may not be
advanced enough to easily utilise these resources.
Eg:- Uranium found in Jammu Kashmir
Similarly High speed winds were Potential resource 200 years ago but at present is Actual resource
See the following picture of wind mill.

10. Learning by doing
Collect pictures of actual resources and paste in chart .
1.5) Based on their Origin
They are classified as BIOTIC and ABIOTIC Resources
Biotic Resources areliving whereas A biotic arenon Living.
Activity
Differentiate among the pictures as Biotic or A biotic

11. 1.6) Natural resources can be broadly classified into
Renewable and non renewable resources.

12. i) Renewable resources
A renewable resource isa resource which is replaced naturally and can be used again. But still careless use
of renewable resource will lead to shortage.
Examples:
1) Fresh water 2) Forest
3: timber
II) Non renewable Resources
Non-renewable resourcesare resourcesforwhichthere isalimitedsupply.The supplycomesfrom the Earth
itself and, as it typically takes millions of years to develop, is finite.
Examples are:

13. 1) Fossil fuels 2) Coal
3:Petroluem
Learning by Doing
Activity ( Think of few renewable natural resources and mention how their
stock may get affected by overuse.)
1.7) On the basis of their distribution Resources are Classified as
I ) Ubiquitous ( Resources that are found everywhere like the air we breathe)

14. ii) Localised (Resources that are found certain area like Copper and Iron ore.)
1.8) Human Made resources
When a natural resource undergoes drastic change by human intervention, it becomes human-made
resource.
For Example : Iron Ore was not Natural Resource until it was been extracted from ground.
Similarly people use natural resources to make buildings, roads, bridges etc
Technology is also a human made resource.
Learning By doing
Activity (Make a list of five human made resources that can you observe around you.)
1.9) Human resource
(People can make best use of resources when they have knowledge, skills,
Technology. That is human being is the special resource. People are human resource).
Note ( Human resource refers to number ( quantity) and abilities ( mental and
physical) of the people).
For Example :

15. u
So from above pictures it’s clear about human resources. Humans. are interdependent
on each other.
Crops
Ruineddue
to Drought.
Can I find
the
solution?
That’s it!
It’sall thanks to
knowledge,skill
and education....
we couldfinda
solution.

16. Learning By doing
Activity: write down few examples of human resources
1.10) Resource Conservation
Using Resources Carefully and giving them time to get renewed is called resource conservation.
Conservation of resources means to save-up resources and to use them optimally. For instance in today's
worldenergyconservationhasgrowninimportance.Alsogrowninsignificance is water conservation. Fresh
waterreserve levels across the world have gone down.. Hence it's become very important to optimize the
usage of water.Shortershowers,rainwaterharvesting,avoidingcarwashetc can save up to gallons of fresh
water per day.
Balancing the need to use resources and also conserve them for the future is called Sustainable Development .
Each Person can contribute towards resource conservation by
Reducing the Consumption
(Like use of water, electricity if not in use turn off to save it)

17. These are few pictures relating to water conservation .
As every drop of water is precious .and life without water is impossible,
Recycling
(It involves after use of things again recycle it to use like paper(newspaper can recycled to prepare packets and
shopping bags, discarded clothes are used to prepare bags,bamboo sticks can be used to prepare baskets)

18. Following picture is of bags made from discarded clothes
Reusing things

19. Ultimately it makes a difference as all our lives are linked with each other.
Now, watch this video
https://www.youtube.com/watch?v=42lxgPflEKM
the future ofourplanet and itspeople is linkedwith our ability tomaintain and preserve the life support system
that nature provides. Therefore its our duty to ensure that :
All uses of renewable resources are sustainable
The diversity of life on the earth is conserved
The damage to natural environmental system is minimised.

20. Some principles of sustainable development
Respect and care for all forms of life
Improves the quality of human life
Conserve the earth vitality and diversity
Minimise the depletion of natural resources
Change personal attitude and practises towards the environment
Enable communities to care for their own environment .
Glossary
 Patent: It means the exclusive right over any idea or invention.
 Technology: It is the application of latest knowledge and skill in
doing or making things.
 Stock of Resource: It is the amount of resource available for use.
 Sustainable Development : Carefully utilisation of resources so that
besides meeting the requirements of the present, also of future
generations.
Summary
o Defination (anything that can be used to satisfy a need is a resource)
o It explains about what is Resource,its use,importance,value(economic value)
o Types of Resources (Natural, Human made, human resources)
o Natural resources( resources that are drawn from the nature used without
modification )
o It is further divided on the basis of development as (actual and Potential), on the
basis of orgin ( biotic and a biotic), on the basis of distribution as (ubiquitous
and localised),on the basis of use( Renewable and non renewable)
o II type is human made resources (natural substances whose original form is
changed for consumption )

21. o III type is human resource (making use of resources with help of human skills,
knowledge, and technology to create more resources.
o Conservation of resources (using resources carefully and giving them time to
get renewed is called resource conservation.)
o And with help of examples and activity it helps us to know how we can save
resources and use it without wasting.
Exercises:
1. Answer the Following Questions:
a) What is the reason behind of unequcal distribution of resources
over the earth?
b) Explain the different classification of natural resources?
c) What is resource conservation?
d) What is Sustainable development?
e) Why are human resources important?
2. Differentiate between the following.
a) Ubiquitous and localised resources
b) Potential and actual resources
c) Renewable or non renewable resources
3. Tick the correct answer:
a) Which one of the following is a human made resource?
 Utility
 Value
 Quantity

22. b) Which one of the following is the human made resource?
 Medicines to treat cancer
 Spring water
 Tropical forest
c) Complete the statement.
 Derived from the living thing
 Made by human being
 Derived from non living thing.
4. Activity :
Think of how can you use these resources (stone,leaf,paper) as
a resource.and write down the points
a)
Use/utility : ---------------------------------------------------------------------------------------------------------------
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b)
Use/utility : ---------------------------------------------------------------------------------------------------------------
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23. c)
Use/utility -----------------------------------------------------------------------------------------------------------------
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