HEAVENLY BODIES CLASS 3 FROM SCIENCE

 HEAVENLY BODIES CLASS 3 FROM SCIENCE .

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some additional answers and questions provided by me . so connect this website join us .

 1. What is space . ?

Ans - The region beyond the atmosphere of the earth is called space.

2. What is universe.

Ans -  Universe is a vast open space, which includes everything that consists as matter.our earth is a part of this universe.

3. Who is called an astronaut.

Ans - The people, who go into the space are called astronaut. they travel in a spacecraft in the space.

4. What is the sun .

Ans - The sun is a huge ball of burning of gases that emits us light and heat. the sun is centre of the solar system and all planets revolve around it in fixed path .

5. Who is dwarf planet. ?

Ans - Pluto is known as dwarf planet.

6. What is the solar system. ?

Ans - The sun eight planets and their satellites along with some other heavenly objects from our solar system.

7. Define the planets and give any natural planet of the earth. 

Ans - planets are the heavenly bodies, which move around the sun is called planet. moon is the natural satellite of the earth.

8. How many planets in solar system. ?

Ans - There are 8 planets of our solar system.

Mars, jupiter,saturn , uranus , Neptune, mercury , Venus and earth . 

                                         

9. What is the moon. ?

Ans - The moon is a heavenly body that moves around the earth in the same way as earth moves around the sun.it is also called the natural satellite of the earth.

10. what is on the surface of the moon .

Ans - The surface of the moon is rocky . It has mountains and valleys. but there is no air and water on it .

11. why is not possible life on the moon . ?

Ans - life is not possible on the moon because there is no air and water on it .

12. Write any two examples of natural luminous objects.

Ans - there are two examples are -  sun and star .

13. What is star and galaxy . ?

Ans - A star is a big ball of burning gases which gives out both heat and light .

Galaxy - a group of millions of star is called galaxy .

14 . Who is called milky way . ? 

Ans - Milky way is known as akash ganga .

15 . What is constellation and give any two examples.

Ans - certain group of star seem to from a recognisable pattern in the sky . These are called constellation. there are many constellation in the universe. some of them are ursa major ,leo and orio .

16. What is orbit. ? 

Ans - the fixed path along which a planet moves around the sun is called orbit.

17. What is revolution of the earth. ?

Ans - Movement of the earth around the sun is called revolution of the earth.

18. How are days and nights caused. ?

Ans - Days and nights are due to rotation of the earth.

19. why does change of seasons. ?

 - The change of seasons because revolution of the earth. 

20. What does the solar system consists of ?

Ans - the solar system consists of the sun , eight planets including the earth and their satellites along with some other heavenly bodies from our solar system.

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