Chapter 17 Stars and the Solar System mcqs & important questions science | class 8th

MCQ Questions for Class 8 Science: Ch 17 Stars and the Solar System

1. Which planet has the largest number of satellites?

(a) Jupiter

(b) Saturn

(c) Mercury

(d) Mars

► (b) Saturn

2. The Halley’s Comet is seen after every
(a) 76 months
(b) 76 years
(c) 56 months
(d) 56 years
► (b) 76 years

3. Which is the largest, natural satellite in the solar system?

(a) The moon
(b) lo
(c) Eros
(d) Ganymede

► (d) Ganymede

4. White is the time-period of revolution of Halley

(a) 25 years

(b) 80 years

(c) 56 years

(d) 76 years

► (d) 76 years

5. Farthest planet of the solar system is:

(a) Neptune

(b) Jupiter

(c) Mercury

(d) Earth

► (a) Neptune

6. Sky is not clear in cities due to

(a) Dust and smoke

(b) More population

(c) Bright light

(d) Larger area

► (a) Dust and smoke

7. The celestial body nearest to the earth is

(a) Venus

(b) The Sun

(c) Proxima

(d) The moon

► (d) The moon

8. Of which element is ozone made?

(a) Oxygen

(b) Nitrogen

(c) Carbon

(d) Carbon and oxygen

► (a) Oxygen

9. Neptune have very low temperature due to

(a) Far distance from sun

(b) Presence of oxygen

(c) Huge amount of ice

(d) Glacier on its surface

► (a) Far distance from sun

10. Star appear small because

(a) They are very far

(b) They have dim light

(c) They are smaller than moon

(d) They reflect the Sun

► (a) They are very far

11. Which of the following is the brightest non-star visible to the human eye?

(a) Moon

(b) Venus

(c) Mars

(d) Jupiter

► (a) Moon

12. ISRO stands for

(a) Indian Science Research Organization

(b) International Science Research Organization

(c) Indian Space Research Organization

(d) Inter State Research Organization

► (c) Indian Space Research Organization

13. The path of planet around the sun is called its

(a) Orbit

(b) Spin

(c) Rotation

(d) Revolution

► (a) Orbit

14. Celestial bodies that emit heat and light in one year are called

(a) Asteroids

(b) Planets

(c) Moons

(d) Stars

► (d) Stars

15. The various shapes of bright part of moon is called

(a) Parts of moon

(b) Ring of moon

(c) Cover of moon

(d) Phases of moon

► (d) Phases of moon

16. A planet which appears yellowish:

(a) Saturn

(b) Mars

(c) Uranus

(d) Venus

► (d) Venus

17. Where is a spy satellite deployed?

(a) Low-earth orbit

(b) Geostationary orbit

(c) Polar orbit

(d) Both (a) and (b)

► (a) Low-earth orbit

18. A piece of rock which burns as it falls through the earth atmosphere is

(a) Meteoroids

(b) Asteroids

(c) Meteorite

(d) Meteor

► (c) Meteorite

19. Millions of stars together form

(a) Solar system

(b) Galaxy

(c) Constellation

(d) Comet

► (b) Galaxy

20. Identify the closest star to our solar system.

(a) Proxima centauri

(b) Sirius

(c) Swati

(d) Ashwini

► (a) Proxima centauri

21. Which of the following is not a celestial body?

(a) Satellite

(b) Star

(c) Moon

(d) Planets

► (a) Satellite

22. The gap between the orbit of Mars and Jupiter is called

(a) Asteroid

(b) Comets

(c) Meteor

(d) Meteorite

► (a) Asteroid

23. To which of the following category does Orion belong?

(a) Star

(b) Planet

(c) Galaxy

(d) Constellation

► (d) Constellation

24. What kind of a planet is Jupiter?

(a) Terrestrial planet

(b) Gas planet

(c) Asteroid

(d) Hottest planet

► (b) Gas planet

25. The brightest object in clear night sky is

(a) Venus

(b) Sun

(c) Moon

(d) Star

► (c) Moon

Class 8 Science Chapter 17 Extra Questions and Answers Stars and the Solar System

Extra Questions for Class 8 Science Chapter 17 Friction with Answers Solutions

Stars and the Solar System Class 8 Extra Questions Very Short Answer Type

Question 1.
Name the planet nearest to the Sun.
Answer:
Mercury

Question 2.
What is the speed of light?
Answer:
300000 km per second (3 x 10⁸ m/s).

Question 3.
Which is the brightest planet in the night sky?
Answer:
Venus

Question 4.
Name the star which is nearest to our solar system.
Answer:
Alpha centuari

Question 5.
Which planets do not have satellite of their own?
Answer:
Venus and Mercury

Question 6.
How many planets are there in our solar system?
Answer:
Eight

Question 7.
Which planet is called Red planet?
Answer:
Mars

Question 8.
Why Earth appears blue from space?
Answer:
Due to presence of water Earth appears blue from space.

Question 9.
What is the other name of Orion?
Answer:
Hunter

Question 10.
Which planet is least dense among all?
Answer:
Saturn

Question 11.
Do stars emit light only during night time?
Answer:
No, they emit light all the time.

Question 12.
Name the unit which is used to measure astronomical distances?
Answer:
Light year

Question 13.
What is asteroid?
Answer:
Asteroid is a small rocky body orbiting the sun or found between the orbit of Mars or Jupiter.

Question 14.
Which is the other name of constellation Great Bear?
Answer:
Saptarishi

Question 15.
What is Sun?
Answer:
Sun is a star.