** SCIENCE TRICK** Surface Tension And Air Pressure

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Published 23 Jun 2007
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Surface Tension and air pressure trick

Components: a jar, a card, a net (onion net),  toothpicks and water...
Surface Tension and air pressure trick

Components: a jar, a card, a net (onion net),  toothpicks and water.
Experiment:

When the card is removed the water stays in the jar because the molecules of water are joined together, like a thin membrane between each hole in the net.
Even though the membrane is broken with a toothpick, it is generated again and again..


Air Pressure: The air pressure is pushing upward harder than the water is pushing downward.
Surface Tension: http://en.wikipedia.org/wiki/Surface_Tension   Surface tension is caused by the attraction between the molecules of the liquid by intermolecular forces.
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