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Class 5 Science Chapter 8 Test 1

Welcome to your Class 5 Science Chapter 8 Test 1

1. 
The volume of internal core of the Earth is ________ of the total volume of the Earth.

2. 
The central part of the Earth is called the ________.

3. 
It takes about 1000 years to make only a ________cm thick layer of soil.

4. 
The average thickness of the crust of the Earth is ________.

5. 
The hot fluid in ________ of the Earth comes out of the Earth surface in form of lava during volcano eruption

6. 
The biggest part of the Earth by volume is ________.

7. 
________ is extremely hot and highly thick fluid like honey.

8. 
Internal core is ________.

9. 
The thickness of the mental is about ________.

10. 
The hottest part of the Earth is its ________.

11. 
________ contains lofty mountains, deep oceans, rivers, green fields, rural and urban dwellings.

12. 
________ consists of solid matter.

13. 
The diameter of the Earth is ________km.

14. 
External core is in the form of a thick black ________ which contains elements like iron and nickel.

15. 

The temperature of the core is about ________0C.

16. 
The outer shell of the Earth is called ________.

17. 
The Earth’s core consists of ________ parts.

18. 
The only planet of the solar system where conditions are suitable for the existence of life is ________.

19. 
There are ________ layers of the Earth.

20. 
The layer of the Earth under the crust is called ________.

21. 
We live on the ________ of the Earth.

22. 
Internal core contains elements like iron and nickel.

23. 
Beneath the oceans, the thickness of crust is about ________ km.

24. 
The distance of the Earth from the sun is ________million km.

25. 
The weight of internal core of the Earth is ________ of the total of the Earth.