Available Answers

1. 1.

   This is a diagram showing an eclipse. Label the sun, earth and moon on it. Is it a solar or a lunar eclipse?

   

2. 2.

   Multiple Choice Questions (MCQs)

   1. Which of these is not a source of light?
      1. Sun 
      2. Moon
      3. Lighted candle
      4. Stars
   2. You will be able to see most clearly through something that:
      1. Allows all light to pass through it
      2. Reflects all light falling on it
      3. Absorbs all light falling on it
      4. Allows half the light to pass through and reflects the other half
   3. Tracing paper is
      1. Transparent
      2. Opaque
      3. Translucent
      4. None of these
   4. A lunar eclipse occurs when the
      1. Earth is between the sun and the moon
      2. Moon is between the sun and the earth
      3. Sun is between the earth and the moon
      4. In all the above situations
3. 3.

   Match the columns.

   Column A	Column B
   a. Shadow	(i) Artificial source of light
   b. Candle	(ii) Nature source of light
   c. Transparent	(iii) Caused by shadow of earth or moon
   d. Eclipse	(iv) Path of light blocked
   e. Glow worm	(v) Can see clearly through it

    

4. 4.

   What is a source of light? Give two examples each of natural and artificial sources of light.
5. 5.

   How are shadows formed?

6. 6.

   What happens to light when it falls on any object?