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Class 4 Science Chapter 9 Test 1

Welcome to your Class 4 Science Chapter 9 Test 1

1. 
The sun is the __________ of solar system.

2. 
Complete moon is called ______

3. 
The moon completes one round around earth in 27.3 days and since earth is also moving, so moon is completed for us in ______

4. 
The third biggest thing appearing in the sky after the sun and moon is _____.

5. 
The closest star to Earth is the _________.

6. 
________ is the largest planet in the solar system.

7. 
The natural satellites of the Earth are _______.

8. 
______ is the brightest object appearing in the sky after the sun is the Moon.

9. 
The circular path of a planet around the sun is called a/an______.

10. 
The distance between Earth and Moon is about _______km.

11. 
The moon completes one round around earth in ______

12. 
All planets of solar system have moons except:

13. 
Among all the celestial bodies, ________ is the closest to the Earth.

14. 
The first planet that revolves closest to the sun is______.

15. 
Moon complete one revolution around the Earth is about _______days.

16. 
The Earth and the Moon, other planets, comets and asteroids etc. revolve around the sun due to the ___________of the sun.

17. 
On the first day of lunar month, the very narrow shape of Moon is known as______.

18. 
The time taken by a planet to complete one orbit is called a/an ___period.

19. 
The sun is a_________.

20. 
Which planets have maximum number of Moons?