Available Answers

1. 1.

   Find the odd one out and give your reasons.

   1. Pleides, Ursa Major, Orion, Sun
   2. Mercury, Earth, Uranus, Pluto
   3. Moon, Aryabhata, Sputnik, Rohini
2. 2.

   Rewrite the incorrect statements correctly.

   1. Earth is a satellite of the Sun.
   2. The Pole Star is used by sailors to fix the position of ships.
   3. The orbits of the planets around the Sun are circular.
   4. The Sun's gravitational force prevents the planets from flying off into space.
   5. The moon goes through a complete cycle of waxing and waning in 14 days.
   6. Meteors glow because of friction when they enter the Earth's atmosphere.
   7. A solar eclipse occurs when the shadow of the moon falls on the Earth.
   8. The revolution of the Earth causes day and night.
3. 3.

   Define a galaxy.

4. 4.

   What is a comet?

5. 5.

   What is a constellation? Name any three constellations.

6. 6.

   Which is the planet nearest to the Sun and which one is the farthest?