Available Answers

1. 1.

   Why don't we see the Moon during the day?

2. 2.

   Choose the correct option. (MCQs)

   1. A shadow is formed
      1. only on Earth
      2. in air only
      3. in dark only
      4. everywhere, where there is light and an opaque object
   2. We see different phases of the Moon because of
      1. motion of the Sun
      2. motion of the Moon around the Sun
      3. motion of the Moon around the Earth
      4. motion of the Earth around the Sun
   3. Tides can be
      1. short and low
      2. thick and thin
      3. narrow and wide
      4. high and low
   4. Which among the following is not true of the Moon?
      1. Craters
      2. Absence of life
      3. Absence of water
      4. Absence of rocks
   5. Which of the given conditions are essential for the solar eclipse to occur?
      I. The Sun. the Moon and the Earth coming to lie in a straight line
      II. Moon between the Sun and the Earth
      III. New Moon day
      IV. Crescent Moon
      1. I, II, Ill and IV
      2. I, Il and III only
      3. I and Il only
      4. Ill and IV only
   6. The first artificial satellite launched by India was
      1. Chandrayaan
      2. Aryabhatta
      3. Sputnik
      4. PSLV
3. 3.

   Fill in the blanks with the help of words given in the box.

   1. A lunar eclipse occurs when ______________ comes to lie between the ______________ and the ______________ along a straight line.
   2. ______________ are man-made objects that revolve around the Earth.
   3. ______________ is the closest neighbour of the Earth.
   4. When more than half of the Moon is seen, it is called ______________ Moon.
   5. A ______________ is a celestial body that revolves around a planet.
4. 4.

   State whether True or False.

   1. When a lunar eclipse occurs, the Moon is covered by the Earth's shadow
   2. A New Moon is when we see the complete moon
   3. Gravity of the Moon is lesser than that of the Earth
5. 5.

   Match the following:

   1. Rotation of the Earth on its axis	a. about 28 days
   2. Revolution of the Moon around the Earth	b. gravity
   3. A natural pull exerted by a celestial body	c. energy
   4. Light	d. 24 hours

    

6. 6.

   How do tides occur?