The document discusses the structure and composition of the Earth's interior. It is comprised of three main layers - the crust, mantle, and core. The crust is the outermost solid layer, ranging from 5-75 km thick. It is composed of igneous and sedimentary rocks. The mantle is the thickest layer, consisting of hot dense rocks and accounting for about two-thirds of the Earth's mass. Below is the core, divided into the solid inner core and liquid outer core primarily made of iron and nickel. The crust forms at the boundaries between shifting tectonic plates as new magma rises and hardens upon reaching the surface and oceans.

2. Slide
Summary
I. About
II. Interiors of Earth
III. What is Soil ??
IV. Formation of Soil
V. Crust
VI. More about Crust
VII. Formation of Crust
VIII.More about Formation of Crust
IX. Picture Gallery
X. Quiz Time

3. The Interiors of Earth comprises of Soil, Earth &
Crust.

4. SUMMARY OF INTERIORS OF
EARTH
Crust
Outer layer
Consist of heavy metals
1/250 of earth mass
25 miles thick
Mantle Core
Middle & thickest layer Very hot
Composed of hot, dense rocks.
1/3 of the earth’s mass
Rocks flows like asphalt
Outer Core: Iron & Nickel in
2/3rd of the earth’s mass
liquid state; 1400 miles thick
1800 miles thick
Inner Core: Iron & Nickel in solid
state; 800 miles thick

5. What is
Soil ??
The upper layer of earth in which plants grow, a
black or dark brown material is known as Soil.

6. Formation
of Soil

7. Crust
Now , Let’s learn about the Earth’s crust.
The crust of the Earth is composed of a great
variety of igneous, metamorphic,
and sedimentary rocks. This drawing shows
the Crust, Upper Mantle, Mantle, Outer Core,
Inner Core.

8. What is
Crust ??
• oppppp
The Earth's crust is an extremely
thin layer of rock, like the skin of
an apple in relative terms. It
amounts to less than half of 1
percent of the planet .

9. Formation
of Crust

10. Formation
of Crust
Crust is formed along boundaries between
tectonic plates which are moving apart. Most crust
creation takes place on the ocean floor at the mid-
ocean ridges. As the plates move apart, solidifying
magma rises, filling fractures and openings created
by the divergence. Some lava also spills out into
the seawater, creating pillow basalts on the
seafloor. The entirety of the oceanic crust has, and
is, being created in this manner.

11. Photo Gallery

12. Quiz Time
• Where is Crust formed ?
Ans : Crust is formed along boundaries between
tectonic plates which are moving apart.
• What is Soil ?
Ans : The upper layer of earth in which plants
grow, a black or dark brown material is known
as Soil.
• What is Mantle??
Ans : Mantle is the middle and thickest layer.

13. Thank You!!!!!!!
This slideshow is made by
Taal
&
Kunj
representing Class 5 - I
Hope you enjoyed it!!!!