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Solutions ⇒ Class 8th ⇒ Science ⇒ 17. Stars And The Solar System

Solutions 17. Stars And The Solar System - Text Book Exercise | Class 8 Science - Toppers Study

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17. Stars And The Solar System

| Text Book Exercise |

Solutions 17. Stars And The Solar System - Text Book Exercise | Class 8 Science - Toppers Study


Exercise NCERT Book


Choose the correct answer in Questions 1-3 : 1.

Q1. Which of the following is NOT a member of the solar system?

(a) An asteroid

(b) A satellite

(c) A constellation

(d) A comet

2. Which of the following is NOT a planet of the sun?

(a) Sirius

(b) Mercury

(c) Saturn

(d) Earth

3. Phases of the moon occur because

(a) we can see only that part of the moon which reflects light towards us.

(b) our distance from the moon keeps changing.

(c) the shadow of the Earth covers only a part of moon’s surface.

(d) the thickness of the moon’s atmosphere is not constant.

4. Fill in the blanks:

(a) The planet which is farthest from the Sun is ____________ .

(b) The planet which appears reddish in colour is ____________ .

(c) A group of stars that appear to form a pattern in the sky is known as a ____________ .

(d) A celestial body that revolves around a planet is known as __________.

(e) Shooting stars are actually not ____________.

(f) Asteroids are found between the orbits of _________ and _________ 

5. Mark the following statements as true (T) or false (F):

(a) Pole Star is a member of the solar system. ( )

(b) Mercury is the smallest planet of the solar system. ( )

(c) Uranus is the farthest planet in the solar system. ( )

(d) INSAT is an artificial satellite. ( )

(e) There are nine planets in the solar system. ( )

(f) Constellation Orion can be seen only with a telescope. ( )

 6. Match items in column A with one or more items in column B: A B

(i) Inner planets          (a) Saturn

(ii) Outer planets         (b) Pole Star

(iii) Constellation          (c) Great Bear

(iv) Satellite of the Earth  (d) Moon

(e) Earth                 (f) Orion

                         (g) Mars

7. In which part of the sky can you find Venus if it is visible as an evening star?

8. Name the largest planet of the solar system.

9. What is a constellation? Name any two constellations.

10. Draw sketches to show the relative positions of prominent stars in (a) Ursa Major and (b) Orion

11. Name two objects other than planets which are members of the solar system.

12. Explain how you can locate the Pole Star with the help of Ursa Major.

13. Do all the stars in the sky move? Explain.

14. Why is the distance between stars expressed in light years? What do you understand by the statement that a star is eight light years away from the Earth?

15. The radius of Jupiter is 11 times the radius of the Earth. Calculate the ratio of the volumes of Jupiter and the Earth. How many Earths can Jupiter accomodate?

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Solutions ⇒ Class 8th ⇒ Science
1. Crop Production And Management
2. Microorganisms : Friend And Foe
3. Synthetic Fibres And Plastics
4. Materials : Metals And Non-Metals
5. Coal And Petroleum
6. Combustion And Flame
7. Conservation of Plants And Animals
8. Cell - Structure and functions
9. Reproduction in animals
10. Reaching the age of adolescence
11. Force And Pressure
12. Friction
13. Sound
14. Chemical Effects of Electric Current
15. Some Natural Phenomena
16. Light
17. Stars And The Solar System
18. Pollution of Air and Water

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