NECESSARY MATERIALS:
(1) A thick cardboard paper.
(2) Scissors or blade -1
(3) A pencil and a pencil compass.
(4) Seven colours - Violet, Indigo, Blue, Green, Yellow, Orange and Red
(5) A piece of stiff thread with the length of 1-2 cubits.
PREPARATION:
Go on extending and releasing the thread until you become skilled.
PRESENTATION OF THE GAME:
Before you present this game, draw a circle on the cardboard with the pencil. Now, trim the unnecessary pat around the circle. Draw seven lines that divide the circle into seven equal parts. Fill each part with different colours mentioned above and dry them. Make two holes at a little distance from the centre of the circle.
Enter the thread through the holes and interlace the ends of both sides. Then, hold out both ends with the hands in right and left. Whirl the circle for 2/4 rounds. Likewise, go on extending and releasing it quickly. As result, the circle starts to rotate rapidly.
Just perceive now-what happened?
The parti-coloured circle seemed to be of a single colour, didn't it? Do think what colour did all the different seven colours change into?
Surely into white, isn't it?
THE SCIENTIFIC REASON:
In fact, white colour is a mixture of Violet, Indigo, Blue, Green, Yellow, Orange and Red. The composition of these very seven colours is the white. There are seven colours in the sunlight too, but we see just the white one.
CONCLUSION:
It can be proved that the sun-light is a composition of seven colours.
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