Available Answers

1. 1.

   Write 'True' or 'False':

   1. Our Earth is about 4 to 5 billion years old.
   2. The rotation of the Earth about its axis causes days and nights.
   3. A leap year has 364 days.
   4. It rain heavily in the monsoon.
2. 2.

   Multiple choice questions:

   1. Our solar system has __________________ planets.
      1. 8
      2. 9
      3. 10
   2. The Earth is also called the __________________ planet.
      1. blue
      2. red
      3. green
   3. This planet has rings around it.
      1. mercury
      2. saturn
      3. mars
   4. The hot liquid that comes out from the core of the Earth is called __________________.
      1. lava
      2. hot spring
      3. earthquake
   5. The Earth takes __________________ hours to complete one rotation.
      1. 20
      2. 24
      3. 25
3. 3.

   True-False:

   1. A planet reflects the light of the sun.
   2. The mars is the biggest planet of the solar system.
   3. The moon is at the centre of our solar system.
   4. The Earth was a hot ball of dust and gases in the beginning.
   5. The crust is the outer layer of the Earth.
4. 4.

   Fill in the blanks:

   1. Our Sun is a __________________.
   2. A planet revolves around the sun in a fixed path called __________________.
   3. __________________ is the natural satellite of the Earth.
   4. The centre of the Earth is called __________________.
   5. Days and nights are caused due to __________________ of the Earth about its own __________________.
5. 5.

   Match column A with column B:

   Column A	Column B
   1. Mercury	a. Planet with life
   2. Venus	b. Red planet
   3. Earth	c. Evening star
   4. Mars	d. Planet closest to the sun

    

6. 6.

   Answer in one word:

   1. The blue planet of the solar system.
   2. The movement of the Earth around the sun.
   3. The fifth planet from the sun.
   4. Hottest planet.
   5. The duration in which the Earth complets its one rotation.