Quote:
Originally Posted by displacedinMN
At church camp, kids used to use a card or notecard to do this.
take a card-get it wet-put in on the glass-flip over the glass while holding the card
-it will stick to the water because of adhesion and air pressure.
Place the glass on the table-pull the card
The water would make a seal around the glass and stay in the glass.
I have done it in my class.
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That was my precise science demonstration in grade school.