PROJECT TITLE:
Pascals Law
Aim:
To demonstrate the Pascal's Law.
Materials Required:
|
1. Matchsticks
2. Bottle 3. Rubber balloon |
Procedure:
 |
The pressure applied to a confined liquid is transmitted equally to all
parts of the liquid according to Pascal's law. This can be shown with an
empty bottle, a few matchsticks and a balloon. Cut off the heads of the
matches and then drop the heads into the bottle and fill the bottle to
the brim with water and cover the mouth of the balloon tightly over the
bottle's opening. The match heads will float on top of the water but
when the finger pressed on the balloon diaphragm they will sink slowly
to the bottom. When the finger is lifted, and the heads float up again.
This is because pressure is transmitted through the water, forcing a
small quantity of water to penetrate the edge of each match head. This
adds enough weight to the match head to make it sink and when the finger
is removed, there is enough air pressure inside the heads to force out
the water and make the match heads rise.
VERY helpful for cub scout science Webelos Activity pin. Thanks a LOT!
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ReplyDeletevery helpful 2 cub souts.
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ReplyDeleteTried this 3x and it did not work
ReplyDeleteWhat happened? It worked for everybodey else..... I don't know why not for you.... Did you do everything correctly? Try getting expert advice from a teacher or adult... Let me know if it works....
DeleteOMG!!! I never expected so many people to see my blog.... Anyway I don't know why it didn't work for Unknown when it worked for everybody else.....
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteWill it work with a plastic bottle? Or only glass?
ReplyDelete