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DoScience is Project of Pakistan Science club

Offer free Hands-on Science Activities, DIY Project, Experiments Resources for Teacher and Students best Science club activities and award wining science fair projects.

Invisible Glass Stirrer Experiment

Invisible Glass Stirrer Experiment


  • Glass stirrer


Pour Glycerine into the Beaker and then immerse the Glass stirrer the Beaker.

What Happens

The Glass stirrer looks like a ghost like object in the container, almost invisible.


The real secret behind this science experiment is the index of refraction. When light travels through the glass, and then through the Glycine, the speed of light slows down and then it hits the glass and refracts or reflects and this is why the glass stirrer looks invisible.


Do this experiment with glasses of different shapes and sizes to see what kind of an effect it has on them. You will find that not all glasses have the ability to vanish.
Watch Video:

Invisible Glass StirrerInvisible Glass StirrerRean more: http://goo.gl/rrJ26N

Posted by Pakistan Science Club. on Tuesday, 28 July 2015

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