Controlling the Waterfall

Þ You need:-A bottle, iron nail & hammer.
Þ Note:-The bottle that you use should be air tight.
Þ Procedure:-Before performing the trick take the bottle & make a hole with the help of iron nail & hammer on its lead. The whole should be big enough so that the water can pass through it. Next make another hole on the side of the bottle. Now tell everyone that you are going to show a magic of controlling the waterfall. Put the bucket full of water in front of audience & show that bottle in which you made the holes but do not show that hole which you made on the side of the bottle. Open the lead of the bottle & fill the bottle with water from the bucket & close its lead. Now turn the bottle upside down & put you one of the finger on the side hole. As soon as you take your finger from the hole the water will start falling & as you put your finger back it will stop fall. In front of audience say start when you take your finger from the hole & say stop when you put your finger back. The audience will be surprised & you will receive a great applause from them.