======Ping Pong Funnel Blow======


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**Materials: **{{$demo.materials_description}}\\
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**Safety: **{{$demo.safety_description}}\\
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**Alternative titles:** The Bernoulli Challenge
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====Summary====                   
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====Procedure====  
  - Place a ping pong ball into the wide end of a funnel.  
  - Hold the funnel so the ball sits inside the bowl of the funnel.  
  - Blow firmly through the narrow end of the funnel while tilting it so the ball faces upward.  
  - Observe that the ball stays held inside the funnel rather than falling out.  
  - Test further by trying to lift the ball from a table using only the funnel and blowing air through it.



====Links==== 
Bernoulli's Principle: Ping-pong Ball and Funnel - Daryl Jay Galabay: 
{{youtube>1TQL1ju3RoQ?}}\\

PING PONG BALL PHYSICS TRICK Experiment - Kids Fun Science: 
{{youtube>GAsgYcRpviY?}}\\

📄 The Bernoulli Challenge - Science World: [[https://www.scienceworld.ca/resource/have-you-got-enough-puff/]]\\


====Variations====
  * Try using funnels of different sizes to see how the effect changes.  
  * Replace the ping pong ball with lightweight balls of different materials.  
  * Test how gently or forcefully you can blow while still keeping the ball in place.  
  * Use a vacuum cleaner on “blow” mode instead of breath for a steady airflow.



====Safety Precautions====
  * Do not inhale sharply while the funnel is near your mouth to avoid drawing dust or debris.  
  * Ensure the funnel and ball are clean before use.  
  * Avoid blowing too hard for extended periods to prevent dizziness.




====Questions to Consider====
  * Why does the ball not get blown out of the funnel? (Air moving quickly around the ball lowers the pressure near it, so surrounding higher-pressure air pushes it back into the funnel.)  
  * How is this demonstration related to Bernoulli’s principle? (Bernoulli’s principle explains that faster-moving air has lower pressure, which is why the ball is held inside the funnel.)  
  * What would happen if the funnel opening were much larger than the ball? (The effect would weaken because the airflow would not create the same pressure difference around the ball.)