Soap Powered Boat

Things you need-

1. Cardboard
2. Scissors
3. Liquid Soap
4. Pencil
5. A large bowl full of water

Procedure-

1. Draw the shape of boat on cardboard sheet as shown in the first picture don't forget the notch at the back

1. Ask an adult to cut the piece of cardboard precisely in the shape
2. Decorate this by adding cabins made by paper on top of the base of boat

How to use-

1.  Take a small amount of liquid soap and place it on the notch we earlier made and spread
2. Now put the boat in the bowl filled with water and see it sail across the bowl    

How it works-

Well soap is a surfactant when it comes in contact with water the surface tension of the water surface is broken which creates a force that provide the forward thrust to boat.

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