Chapter 17 Our Universe Class 8 Science Question- answers

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Chapter-17 

Our Universe

 Multiple Choice Questions (MCQs)

  1. ____________appears as a bright head with long tail.

(b) Comet

  1. _____________was the first Indian satellite.

(d) Aryabhatta

  1. Which of the following is not a planet?

(b) Moon

  1. When we cannot see the moon we call it

(a) new moon

  1. The science dealing with the study of heavenly bodies is called

(c) astronomy

  1. The natural bodies present in the sky are known as

(c) celestial bodies

  1. The Pole Star is in the constellation

(c) Ursa Minor

  1. The star nearest to the earth is

(b) Alpha Centauri

  1. The earth spins from

(a) west to east

  1. Which of the following is not a planet of our solar system?

(a) Sirius

  1. The constellation that looks like a distorted W or M is

(d) Cassiopeia

  1. Every fourth year on the Earth has

(c) 366 days

  1. A cluster of billions of stars is called

(b) constellation

  1. The Sun is at

(a) the centre of the Solar System

  1. The occurrence of various shapes of the moon is known as:

(b) phases of the moon

  1. The star that appears to be stationary is

(a) Pole Star

  1. Fill in the blanks:

  2. The Ursa Major constellation has seven prominent stars.
  1. The Sirius is the brightest star in the sky at night.
  1. Alpha Centauri star is the closest to the earth after the sun.
  1. Man-made satellites help in communications.
  1. Mercury and Venus’s planets have no satellites.
  1. Milky way galaxy is discoid in shape.
  1. When more than half the moon is visible it is called the gibbous moon.
  1. Mars is also known as the red planet.
  1. A constellation is a group of stars that appear to form a regular pattern.
  1. State whether ‘True’ (T) or ‘False’ (F):

  2. Saturn is encircled by three beautiful rings. False
  1. A shooting star is also called a meteor. True
  1. Sputnik is a natural satellite. False
  1. Comets are members of the solar system. True
  1. Weather satellites revolve around the earth at the height of which clouds exist. False
  1. The sun is the biggest and the brightest of all the stars in the universe. False
  1. Moon has a light of its own. False
  1. Venus is known as the morning and evening star. True

 


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