Land,soil,water class- VIII social science

Land,soil,water class- VIII social science
by sushanta sir

1. CLASS-VIII

SUBJECT-SOCIAL STUDIES

CHAPTER-2 (GEOGRAPHY)
LAND, SOIL, WATER, NATURAL
VEGETATION AND WILD LIFE

2. 1st period
Students will able to :-
Understand different uses of land.
Analyze the reasons for the uneven distribution of
population.
Know about the different ways for resource
conservation.


LEARNING OBJECTIVES

3. WORD OF THE DAY
Topography - Physical features
of an area.

4. Different people lives different life
1st period
peter Mamba
New Zealand Africa
LAND
SOIL
WATER
NATURAL VEGETATION
WILD LIFE

5. AGRICULTURE
MINING
BUILDING
HOUSES,ROADS
LAND

Most important natural resources
Covers 30% of the total area.
All land parts are not habitable.
SETTING UP OF
INDUSTRIES
LAND USE

6. UNEVEN DISTRIBUTION OF POPULATION
WATER
LAND FORM
CLIMATE
TOPOGRAPHY

7. HUMAN FACTORS PHYSICAL FACTORS
USE OF LAND IS DETERMINED BY
WATER
SOIL
MINERALS
TOPOGRAPHY
POPULATION
TECHNOLOGY

8. PRIVATE LAND
AND COMMUNITY
LAND

9. CHALLENGES ON LAND
INCREACE IN
POPULATION
INCREASE IN
DEMAND
QUALITY OF LAND IS
DIFFERENT
ENCROACHMENT

10. MAJOR THREATS TO ENVIRONMENT
LAND DEGRADTION
LAND SLIDES
SOIL EROSION
DESERTIFICATION

11. CONSERVATION OF LAND RESOURCES
AFFORESTATION
LAND RECLAMATION
REGULATED USE OF
CHEMICAL, FERTILISER
CHECK ON OVER
GRAZING

12. 1. The growth of vegetation depends primarily on
__________ and _________.
RECAPITULATION
2. Write any two reasons for land degradation
today.
3. Why land is considered as an important
resource?
4. Differentiate between private and public land.

13. 2
nd
period
Students will able to :-
Analyze the reasons and mitigation mechanisms
of landslides.
Understand about soil profile.
Know about the methods of soil conservation.


LEARNING OBJECTIVES

14. WORD OF THE DAY
Weathering:-
The breaking up and decay of
exposed rocks, by temperature
changes, frost
action, plants, animals and
man.

15. LAND SLIDES
EARTHQUAKE
FLOOD
CAUSES
VOLCANIC
ERRUPTION

16. MITIGATION
MECHANISM
HAZARD MAPPING
CONSTRUCTION OF RETENTION WALL
INCREASE VEGETATION
SURFACE DRAINAGE CONTROL

17. SOIL

A thin layer of granny substance covering the surface of
the Earth called soil.
Land forms determine the types of soil.
Soil is made up of
ORGANIC MATTERS
MINERALS
WEATHERED ROCKS

18. SOIL PROFILE

19. PARENT ROCKS
FACTORS OF SOIL
FORMATION
CLIMATE
RELIEF
FLORA ,FAUNA
TIME

20. DEGRADATION OF
SOIL
DEFORESTATION
OVERGRAZING
RAIN WASH
OVER USE OF CHEMICALS
LAND SLIDES
FLOOD

21. METHODS OF SOIL CONSERVATION
MULCHING
Covering soil with organic matters ORGANIC
MATTERS
like
Straw,
Leaf,etc.

23. CONTOUR BARRIER
Contour strips of stones, grasses, soil which intercept
down slope flowing water and soil particles.

24. 1. The breaking up and decay of exposed rocks, by
temperature changes, frost action, plants, animals and man
is called _____________.
RECAPITULATION
2. The thin layer of grainy substance covering the surface
of the earth is called___________.
3. Stones, grass, soil are used to build barriers along
contours is called _______.
4. The bare ground between plants is covered with a layer of
organic matter is called ___________.
5. What do you understand by land slide?

25. 3
rd
period
Students will able to :-
Know about the methods of soil conservation.
Understand about the availability of water.
Analyze the use of water.
Know about the methods of water conservation.


LEARNING OBJECTIVES

26. Soil around us
In India soils could be alluvial, black, red, laterite, desertic
and mountain soil.
Each student will Collect soil from their surroundings and
attach with a small poly pack in s.st copy.
They will write its one characteristic with one uses.
Students will also collect crops/grains/fibre which will
favourable to grow in the respective soil and will show to
the teacher during the class.
ACTIVITY

27. WORD OF THE DAY
Trenches-
A trench is a type of excavation
or depression in the ground
that is generally deeper than it
is wide.

28. ROCK DAM

30. INTER
CROPPING
Different crops are grown in alternate rows and are
sown at different times to protect the soil from rain
wash

32. CONTOUR PLOUGHING
Ploughing parallel to the contour of a hill slope to
form a natural barrier for water to flow down the
slope.

33. SHELTER BELT
Rows of trees are planted to check the wind
movement to protect soil cover.

35. water

RENEWABLE NATURAL RESOURCE
BLUE PLANET
3/4
th
of the Earths surface covered with water
2.7% FRESH WATER
ICE SHEETS AND GLACIER 70%
FIT FOR HUMAN USE 1%

37. USES OF WATER
DRINKING
WASHING
INDUSTRIES
AGRICULTURE
GENERATING ELECTRICITY

38. CHALLENGES FOR THE AVAILABILITY OF
WATER
POPULATION INCREASE
GROWING DEMAND OF THE
POPULATION
PROBLEMS OF WATER AVAILABILITY
AFRICA
WEST & SOUTH ASIA
SOUTH AMERICA

39. CONSERVATION OF WATER RESOURCES
RENEWABLE
INDUSTRIAL DISCHARGE
PROPER LINKING OF CANALS
AFFORSTATION
RAIN WATER HARVESTING

40. Water conservation
Each student will suggest from
the given table, where they can
reduce the uses of water.

Students will write their
suggestions in their s.st copy.
ACTIVITY

41. 1. Different crops are grown in alternate
rows and are sown at different times to protect the soil from rain
wash is called as __________.

RECAPITULATION
2. _________ % of fresh water is available and fit for
human use.
3. _________ of the Earth’s surface is covered with water.
4. ___________ is the main reason for water scarcity.
5. Write three uses of water.

42. 4
th
period
Students will able to :-
Understand about natural vegetation and wildlife.
Analyze the benefits of natural vegetation and
wildlife


LEARNING OBJECTIVES

43. WORD OF THE DAY
Biosphere reserves:-
Series of protected areas linked
through a global network,
intended to demonstrate the
relationship between
Conservation and
development.

44. Natural vegetation and
wild life

Natural Vegetation exists only in Biosphere.
BIOSPHERE
A narrow zone of contact between
Lithosphere, Hydrosphere and
Atmosphere.
In Biosphere living beings are interrelated and
inter dependent on each other for survival. This
life supporting system is known as Eco system.

45. NATURAL VEGETATION GIVES

46. wild life

47. Distribution of natural
vegetation

The growth of vegetation depends on
Temperature
Moisture

48. Major vegetation types:-

Associated with areas having abundant water supply.
forest

49. grasslands

As the amount of moisture decreases, the size of trees
and their density reduces and it becomes a grassland.

50. scrubs

Dry area of low rainfall, Thorny scrubs grows.

51. tundra
Found in cold polar regions.
mosses

lichens

52. EVERGREEN DECIDUOUS
forest

53. 1. A narrow zone of contact between the lithosphere,
hydrosphere and atmosphere that we call________.

RECAPITULATION
2. Ecosystem is a _________ system
3. Define Eco system.
4. Write three points on the distribution of natural
vegetation.

54. 5
th
period
Students will able to :-
Know about the conservation measures taken by
the government.
Analyze CITE


LEARNING OBJECTIVES

55. WORD OF THE DAY
National Park
A natural area designated to
protect the
ecological integrity of one or
more
ecosystems for present and
future generations.

56. CONSERVATION OF NATURAL
VEGETATION AND WILDLIFE

NATIONAL PARKS
WILDLIFE
SANCTUARIES
BIOSPHERE RESERVE
VANA MAHOTSAVA
BAN OF
POACHING

57. The conservation on
international trade in
endangered species of wild
fauna and flora

CITES

58. International agreement between
governments.
Its aim to ensure that International trade
of flora and fauna does not threaten their
survival.
Roughly 5,000 species of animals and
28,000 species of plants are protected.

59. 1. . Mosses and Lichens are examples of _________
type off vegetation.

RECAPITULATION
2. Write one feature of tropical evergreen and
tropical deciduous forest.
3. What are the steps taken by the government for the
conservation of natural vegetation and wild life?