Available Answers

1. 1.

   What are the things we observe in the day and night sky?

   Day Sky	Night Sky
   1.	1
   2.	2.
   3.	3.
   4.	4.

    

   Sky is the background of clouds, sun, moon and stars. The sky is blue during the day and black when it is night. We can see a lot of heavenly bodies in the sky, such as, sun, moon, stars and planets. These heavenly bodies together form the solar system.

2. 2.

   State true or false.

   1. Mars is also called the blue planet.
   2. 'Eris' and 'Haumea' are dwarf planets in our solar system.
   3. Our galaxy is called the constellation.
   4. Stars give out light and heat.
   5. Jupiter has 62 moons and Saturn has 69 moons.
3. 3.

   Fill in the blanks.

   1. The earth's axis is tilted at _________.
   2. The shape of the earth's orbit is _________.
   3. During both _________ and _________ seasons, sun rays fall equally on southern and northern hemisphere.
   4. _________ is the movement of the earth on its imaginary axis.
   5. _________ receives the same amount of sunlight throughout the year.
4. 4.

   Tick (√) the correct answer.

   1. Jupiter is the _________ planet.
      1. coldest
      2. biggest
      3. first
      4. red
   2. Mars planet is _________ in colour.
      1. blue
      2. red
      3. green
      4. brown
   3. Which among the following causes day and night?
      1. Revolution
      2. Equator
      3. Rotation
      4. None of these
   4. The Orion and Ursa major are the types of
      1. animals
      2. constellations
      3. moons
      4. none of these
   5. Seasons are caused by
      1. rotation of the earth
      2. constellations
      3. revolution of the earth
      4. none of these
5. 5.

   Give one word.

   1. This planets is also called morning or evening star.
   2. An imaginary line that runs through the centre of the earth and divides it into two equal halves.
   3. This movement of earth causes seasons.
   4. This is a group of stars.
   5. These are heavenly bodies which revolve around planets.
6. 6.

   Identify the planets.

   1. It has red soil and rocks.
   2. Almost 1300 earths can fir in this planet.
   3. It is the hottest planet.
   4. It is the third planet of the solar system.
   5. It has beautiful rings around it.
   6. It is the last planet of our solar system.