Скачать или смотреть How to Make Water Pump with Balloon | Balloon Powered Water Pump | Water fountain with balloon

For this activity we need, water bottle, coloured water,balloon and a bended straw. We have made a hole in the bottle. We will put the straw in the bottle and make sure it is air tight. We will fill the water in the bottle and place an inflated balloon over the bottle, Wow it creates a wonderful water fountain

How does this work ?
The air inside the balloon is under higher pressure.When you place the inflated balloon on the mouth of the bottle the air pressure on the top of the bottle increases.This pushes down on the water in the bottle which rises through the straw and comes out making beautiful water fountain. Isn't it fascinating

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