This presentation is made in power point 2016.with lots of exciting transitions and animation. With loads of information and pictures.Helpful for students in classes 8,9,10 in social studies (SSC syllabus)

2. What are the four basic areas
of Earth Science?

5. Has anyone been able to
reach the core of the earth?
How were scientists able to
study the earth’s interior?

8. Q1.The core of the Earth is made up
almost completely of which element?
A. Iron
B. Granite
C. Sulfur
D. Calcium
earthscience: LAYERS OF THE EARTH

9. Q2.Which layer of the earth is the
thickest?
A. Core
B. Crust
C. Mantle
D. All of them have the same thickness
earthscience: LAYERS OF THE EARTH

10. Q3.Which layer of the Earth is liquid?
A. Crust
B. Outer Core
C. Inner Core
D. Lithosphere
earthscience: LAYERS OF THE EARTH

11. Fact toknow!
• Earthquakes occur when heat travels
through the mantle and causes
tectonic plates to shift.
earthscience: LAYERS OF THE EARTH

12. • Extreme pressure causes the inner
core of the Earth to remain solid.
• The crust of the Earth is much
cooler than its other layers.
• The Earth’s mantle is flexible and
shifts under heavy loads.
earthscience: LAYERS OF THE EARTH

13. How does the interior of the
Earth look like?

19. ? ? Crust

20. oceanic ? Crust

21. oceanic continental Crust

23. oceanic continental Crust
Made of basaltic rocks
Thinner compared to continental crust
Heavier than continental crust

24. oceanic continental Crust
Made of granitic rocks
Thicker compared to oceanic crust
Lighter than oceanic crust

26. The crust of
the Earth is
broken into
many
pieces
called …

27. plates
plates
plates
The crust
of the Earth
is broken
into many
pieces
called ….

29. What’s the
behavior of the
plates?
plates
plates
plates

30. They
are in constant
motion.
plates
plates
plates

31. What makes
them move?
plates
plates
plates

36. The crust and the
upper layer of the
mantle together
make up a zone of
rigid, brittle rock
called the
Lithosphere..

38. The layer below the rigid is a
zone of asphalt-like consistency called
the

39. The layer below the rigid lithosphere is a
zone of asphalt-like consistency called
the Asthenosphere.

41. The asthenosphere
is the
semi-rigid part of
the middle mantle
that flows.

43. The
between the
crust and the
mantle is called
the...

44. Lower mantle
Mohorovicic
Discontinuity
Astheno-
sphere

45. The
between the crust
and the mantle is
called the
.

46. Is the
temperature
all over the
mantle
the same
or constant?

48. When the
convection
currents
flow in the
asthenosphere
they also move
the crust.

55. ?
?
CORE

56. INNER
OUTER
CORE

58. INNER
CORE
OUTER
CORE

59. INNER
CORE
OUTER
CORE

61. The boundary between the outer
core and the mantle is called
Gutenberg Discontinuity.

62. Gutenberg
discontinuity

63. INNER
CORE
OUTER
CORE
Made of molten metals.
Consists mostly of nickel and iron.

64. INNER
CORE
OUTER
CORE

66. What is the
inner core
made of?

67. INNER
CORE
OUTER
CORE
Made of compacted metals.
Consists mostly of iron.

68. Q. Why is the
inner core solid
despite its
extremely high
temperature?

69. Answer.
• Extremely high pressure as well. The
melting point of iron increases a lot
under very very high pressure.
• And therefore it is in solid state
whereas outer core is in liquid state
69

73. Thank You