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Kids Pressure Experiments - Amazing Paper Ball
 
Amazing Paper Ball
Materials you will need:

• A piece of paper
• A plastic drinking bottle (any size)

 
Steps

Use a clean and dry recycled plastic drinks bottle, one that is easy to hold with one hand.

  1. Roll up a bit piece of paper into a small ball that will fit easily into the opening of the drinks bottle.

  2. Hold the plastic bottle so that it is horizontal.  Rest the ball of paper just inside the neck/opening of the plastic bottle.

  3. Hold the bottle with the ball up close to your mouth and blow into the opening.

  4. Go on; try it again and again and again.

  5. What happens each time?

Have a go at trying this experiment with different sized (openings) drinks bottles and different types of paper (tissue, tin foil, tracing paper)

Here is how it works - The air that you blow into the bottle hits the back or bottom of the bottle and bounces back out the opening of the bottle and forces the paper ball to blow out.

 
 
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