Geography Class 7 Inside our earth

2. Where do we
live on?
What is the shape
of the earth?
Earth
Geoid

3. How deep is the
earth? (Radius)
6,371 kilometres
What is outside
the earth?

4. What is inside the earth?

6. INTERIOR OF THE EARTH

7. Core
Crust
Mantle

8. Core
Crust
Mantle

9. • The uppermost layer over the earth.
• It is the thinnest of all the layers.

10. Oceanic Crust Continental Crust
35 km on the
Continental Masses
5 km on the
Ocean Floors
Sial Sima
Divided into 2 sub- layers
Silica + Alumina Silica + Magnesium

11. • A mantle is a second
layer of the earth.
• It is extends up to a
depth of 2900 km
below the crust.
Mantle

12. Outer Core
Inner Core
Nickel + ferrous
Nife
Core radius is 3500 km
Solid Ball Liquid Layer
Core

13. 1. What are the layers of the earth ?
1. What is crust?
2. What is Mantle?
3. What is Outer core?
4. What is Inner core?

14. Link:
https://thewordsearch.
com/puzzle/2268871/

15. Link:
https://h5p.org/node/
796080?feed_me=nps

16. page number 8
ROCKS AND MINERALS.