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Twitching Straw - See and Feel a Heartbeat
 
Surprising Senses Experiment
Materials you will need:

Yourself or a friend
• A drinking straw
• Some modelling clay

 
 
Steps
 

1.   Find your heartbeat on your wrist or your friends' heartbeat on their wrist just below the thumb by using your pointer and middle fingers pressing gently into the wrist area.  (Don't use your thumb as it has a pulse).

2.  Place the modelling clay on the same area where you have located the pulse.

3.  Insert the drinking straw down into the modelling clay and watch as the straw twitches with each heartbeat.

Can your count the heartbeats? 

Some people find it difficult to find a pulse in the wrist area.  If this is the case try to locate a heartbeat on the neck area (just to either side of the adams apple).  Again, using your pointer and middle fingers.  If you are checking your own heartrate on your neck make sure the straw you are using is long enough for you to see it as it twitches. 

This surprising senses experiment uses two of your five senses.

1. Can you see the heartbeats?

2. Can you feel your heartbeat?

 
 
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