Wednesday, August 9, 2017

Grade 4-DNT Balloon car

In this session students made a balloon car with the help of a plastic bottle,straws,a balloon and cutter to cut the bottle. After cutting the bottle at both ends the straws were fitted in that and a balloon was pasted in one of the side. And when the balloon was blown and placed on the ground it moved forward which explained the air pressure which moved the bottle car.


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