Chapter 17 Our Universe Class 8 Science Question- answers
Multiple Choice Questions (MCQs)
- ____________appears as a bright head with long tail.
- _____________was the first Indian satellite.
- Which of the following is not a planet?
- When we cannot see the moon we call it
(a) new moon
- The science dealing with the study of heavenly bodies is called
- The natural bodies present in the sky are known as
(c) celestial bodies
- The Pole Star is in the constellation
(c) Ursa Minor
- The star nearest to the earth is
(b) Alpha Centauri
- The earth spins from
(a) west to east
- Which of the following is not a planet of our solar system?
- The constellation that looks like a distorted W or M is
- Every fourth year on the Earth has
(c) 366 days
- A cluster of billions of stars is called
- The Sun is at
(a) the centre of the Solar System
- The occurrence of various shapes of the moon is known as:
(b) phases of the moon
- The star that appears to be stationary is
(a) Pole Star
Fill in the blanks:
- The Ursa Major constellation has seven prominent stars.
- The Sirius is the brightest star in the sky at night.
- Alpha Centauri star is the closest to the earth after the sun.
- Man-made satellites help in communications.
- Mercury and Venus’s planets have no satellites.
- Milky way galaxy is discoid in shape.
- When more than half the moon is visible it is called the gibbous moon.
- Mars is also known as the red planet.
- A constellation is a group of stars that appear to form a regular pattern.
State whether ‘True’ (T) or ‘False’ (F):
- Saturn is encircled by three beautiful rings. False
- A shooting star is also called a meteor. True
- Sputnik is a natural satellite. False
- Comets are members of the solar system. True
- Weather satellites revolve around the earth at the height of which clouds exist. False
- The sun is the biggest and the brightest of all the stars in the universe. False
- Moon has a light of its own. False
- Venus is known as the morning and evening star. True